INSTITUTO DE OPTICA. CSIC

At the Institute of Optics, the Laser Processing Group investigates, among other things, how to modify the properties of materials with laser, emulating the characteristics special features of some surfaces of animals and plants found in nature.

MicroHikari3D: An automated DIY digital microscopy platform with deep learning capabilities

MicroHikari3D is an affordable DIY (do it yourself) light microscopy platform with learning capabilities and features such as automated sample positioning, autofocus, and various illumination modalities to provide a high-quality, flexible microscopy tool for laboratories with a reduced budget. The proposed light microscope design aims to be highly adaptable to any need for 2D imaging and 3D live sample observation, at a total cost of approximately € 500.

Transparent high conductive Titanium oxynitride nanofilms obtained by nucleation control for sustainable optolectronics

In this work, the scientific team has prepared different high-quality TiON nanofilms (78 nm) using PLD (pulsed laser deposition) in vacuum, modifying the transparency and conduction properties by varying the energy of the deposition laser to control the N ratio. / O.

Time-expanded phase-sensitive optical time-domain reflectometry

Here, we present a novel ΦOTDR approach that allows a customized time expansion of the received optical traces.

Time-expanded phase-sensitive optical time-domain reflectometry

Here, we present a novel ΦOTDR approach that allows a customized time expansion of the received optical traces.

Role of the quintic nonlinear refractive term in the stability of dissipative solitons of the complex Ginzburg-Landau equation

We revisit the role of the quintic terms of the complex cubic-quintic Ginzburg-Landau equation in the generation of stable dissipative solitons.

Primary facility for traceable measurement of the BSSRDF

A team of researchers from the Institute of Optics has developed a primary facility to provide measurements of the appearance of objects with traceability to the International System of Units (SI). These measurements are very important for studying light scattering in materials and for understanding and reproducing translucency.

Optical and visual quality of real intraocular lenses physically projected on the patient's eye

Researchers from the CSIC's Optical Institute have published and tested the design of a new optical system that can serve as a gold standard to calibrate the quality of programmable visual simulators of intraocular lenses, providing an alternative path for preoperative simulation of vision with intraocular lenses.

Award for the Best Doctoral Thesis in Technologies and Applications of Telecommunications Engineering for our colleague David González Andrade.

The Official College of Telecommunication Engineers has awarded the prize for the Best Doctoral Thesis in Technologies and Applications of Telecommunication Engineering to our colleague David González Andrade for his doctoral thesis carried out at the Optical Institute, under the direction of Aitor Villafranca and Pedro Corredera . The thesis was defended at the Faculty of Physics of the Complutense University of Madrid.

Toward White light emission from hybrid nanostructures

Alejandro Ferrero Turrión, awarded the DfwG-Fellow 2021 by the German Society for Color Science and Application (DFwG)

The German Society for Color Science and Application (DfwG) has awarded the 2021 “DfwG Fellow” to Alejandro Ferrero Turrión for his international contribution to the science of color from the Institute of Optics, in the group “Optical Radiation Measurements”, in particular in the development of experimental methods in the field of gonio-spectrophotometry and goniochromatism.

A team coordinated by the CSIC turns La Palma's fiber optic cabling into a network of sensors to monitor the activity of the volcano

A collaboration between the Institut de Ciències del Mar (ICM-CSIC) of Barcelona, the Institute of Optics (IO-CSIC) of Madrid and the University of Alcalá de Henares has allowed the installation, on the Canary island of La Palma, of a DAS (Distributed Acoustic Sensing) interrogator device on the fiber optic cabling used by the Roque de los Muchachos Observatory (ORM), of the Canary Islands Astrophysics Institute (IAC), to connect to the Spanish Academic and Research Network ( RedIRIS).

Virtual transparency in ϕ-OTDR using second order Raman amplification and pump modulation

Recently, the use of Raman amplification with an engineered intensity modulation has been demonstrated as an efficient way to produce a virtually lossless trace employing a single-end configuration. In this paper, we propose the combination of this technique with a simultaneous second order Raman pumping scheme for increasing the measurement range.

Estimation of scleral mechanical properties from air-puff optical coherence tomography

Researchers from the CSIC’s Optical Institute have published a new method to estimate the mechanical properties of the sclera of the eye. Changes in scleral biomechanics have been associated with prevalent vision defects such as myopia or glaucoma.

Do you want to experience what vision is like with a multifocal lens?

The Visual Optics and Biophotonics laboratory requires volunteers

Broadband Fourier-transform silicon nitride spectrometer with wide-area multiaperture input

These results open the way for the implementation of cost-effective on-chip spectrometers for near-infrared multi-target applications such as environmental studies or chemical analysis.

Quadratic phase coding for SNR improvement in time-expanded phase-sensitive OTDR

In this Letter, we present a specific spectral phase coding methodology capable of further enlarging the SNR of TE-ΦOTDR.

Article published in El País by our colleague Sergio Barbero explaining the shape of progressive lenses

In the article he also puts us in perspective by telling us the origin of the glasses to correct vision at the end of the 13th century that almost all of us use and their current operation.

Smooth multifocal wavefronts with a prescribed mean curvature for visual optics applications

A study published in the journal Applied Optics has published a new mathematical procedure that allows the unique design of multifocal lenses without discontinuities, among other improvements.

Launch of an Alcyon Photonics Design Kit for Applied Nanotools

Alcyon Photonics, a photonics design and photonic silicon solutions company born as a spin-off of the Institute of Optics, has released a Design Kit (PDK) developed in collaboration with Applied Nanotools, the leading specialized integrated photonics foundry. in the manufacture of prototypes.

Simulating Outcomes of Cataract Surgery: Important Advances in Ophthalmology

In the study, the researchers propose that the future of selecting the ideal intraocular lens for each patient will be based on three pillars: obtaining 3D images of the crystalline lens to map its opacities, anticipating the final position of the intraocular lens an once placed and to be able to know in detail the internal shape of the eye for each patient.

The INstituto de Óptica develops the transmittance filters used by the Chinese satellite FY-3E to predict the weather

The Thin Film Optics Group from the Institute of Optics has manufactured the satellite filters that select the spectral bands in which meteorological data will be obtained

Distortion of the local density of states in a plasmonic cavity by a quantum emitter

In this theoretical study, two emitters are considered in a plasmon cavity, as seen in the figure, whose interaction with each of the emitters separately is known. The first emitter plays the role of detecting the density of states resulting from the cavity, modified by the presence of the second emitter.

Photorealistic style transfer for video

A scientific team formed by the Pompeu Fabra University and the Optical Institute has developed an algorithm capable of transferring the style of a realistic image to a given video, so that it adopts the tone, color palette and contrast of the image Dadaist. The algorithm allows the raw video output of a camera to be processed in real time so that the resulting video can be viewed as it is recorded. In addition, the algorithm allows the user to mark correspondence in regions of interest of the image and the video.

Competition Effects During Femtosecond Laser Induced Element Redistribution Between Ba and La in Laser Written Waveguides

A team of researchers with the participation of the Institute of Optics has published an article in which they describe the mutual blocking effect between particles of the same family during the process of creating waveguides by laser-induced redistribution of elements .

Prediction and compensation of visual induction effects on screens of different sizes

This model could tailor the visual induction optical effects of movies to match your experience on any type of screen.

Deep Silicon Amorphization Induced by Femtosecond Laser Pulses up to the Mid-Infrared

The largest thickness value reached in the study is t = 128 nm, using laser pulses of λlaser = 3 µm on silicon covered with a one micron thick layer of SiO₂. Despite being twice as thick as what has been achieved so far, it is still insufficient for asymmetric surface waveguides operating at telecommunication wavelengths.

Interview with our colleague Sergio Barbero Briones on the program Experimento Demente on Europea Radio.

In it he has explained his scientific research in visual optics

Participation of the researcher Aitor Villafranca in the pride

Aitor Villafranca has participated in the activities organized by the Prisma association and the IEEE Photonics

Optimization of the deposition parameters of MgF2/LaF3 narrowband reflective FUV multilayers

The study found a compromise deposition temperature of ~240° C and 13 bilayers for optimal reflectance. Above this deposition temperature, the stress increased, which resulted in an extension of the cracked area and a slight increase in roughness and decrease in reflectance in this light. Layers that were deposited at room temperature and then annealed resulted in reflectance and stress similar to that of coatings hot-laid for the same temperature.

The effect of annealing temperature on Cu₂ZnGeSe₄ thin films and solar cells grown on transparent substrates

A group of scientists from Germany and Spain have just published an article that studies the optimization of the manufacturing conditions of semi-transparent solar cells of Cu ₂ ZnGeSe _{4> / sub> to improve its efficiency.}

Published "The ophthalmologist who used mathematics to understand astigmatism" in El País

In this article they tell the interesting story of Allvar Gullstrand, a doctor who wanted to have studied engineering and who ended up winning a Nobel Prize in 1911 for his studies that were halfway between optometry (study of the defects of the eye and their correction) and the math.

Researchers from IOSA record on video the "Discovering light" workshop to be able to offer it also in online format

This new online format allows the experiments to be viewed from the homes of whoever wants and can repeat them, in addition to the fact that the workshop can be requested in person through the CiudadCiencia project.

¿Se puede medir el color? - Can you measure the color? Talk of the cycle of conferences "Science in the First Person" by our colleague Joaquín Campos

Yesterday, June 13, our colleague Joaquín Campos from the Laboratory of Photometry, Radiometry and Optical Fibers gave a talk entitled Can you measure color?

Experimental Coexistence Investigation of Distributed Acoustic Sensing and Coherent Communication Systems

We demonstrate the co- and counter-propagation coexistence of distributed acoustic sensing and 100G/200G coherent data communication over a single fiber, proving ubiquitous and practical sensing through pervasive telecom fiber infrastructure.

Vapor-solid growth ZnO:ZrO₂ micro and nanocomposites

Scientists from the Institute of Optics and the Department of Materials Physics of the Complutense University of Madrid have just published an article in which they describe how they have managed to "grow" micro and nano structures of ZnO and ZrO ₂ , valuable compounds for a multitude of technological applications.

Sub-250 fs passively mode-locked ultralong ring fibre oscillators

We report the experimental demonstration of a simple passive ultrafast harmonically mode-locked ultralong ring fibre laser architecture using InN-based semiconductor saturable absorber mirrors (SESAMs) that allows for the generation of high peak power ultrashort pulses without the need for external amplification stages.

The winners of the Fotón 2021 Awards have been published

A video about fiber optic sensors and a high school activity focused on the scientific method, Fotón 2021 awards

High-performance on-chip silicon beamsplitter based on subwavelength metamaterials for enhanced fabrication tolerance

In this work, a new light beam splitter for high performance silicon photonic chips has been designed and experimentally tested, incorporating a sub-wavelength metamaterial in a symmetric Y-junction.

Vision with spatial light modulator simulating multifocal contact lenses in an adaptive optics system

In this study, we tested, for the first time to our knowledge, the precision of a commercially available multifocal contact lens design using a spatial light modulator (PLUTO-VIS; Holoeye Photonics AG, Germany) on an AO visual simulator.

Participation of the Institute of Optics in the International Day of Light

The International Day of Light was promulgated by UNESCO after the celebration of the International Year of Light and Light-Based Technologies that took place in 2015, and since that year the Institute of Optics has been participating in the events.

New Advancement in Nanophotonics Explains How Hot Nanoparticle Assemblies Cool Down

A study with the participation of the Institute of Optics predicts unknown behaviors in the heat exchange by radiation between nanostructures.

SPIE, the OSA Foundation and the CSIC jointly publish the English translation of "Descubriendo la luz"

This book, which is the English edition of the book Discovering light (CSIC-Catarata, 2018) has been written by 14 young scientists, including the project editor María Viñas-Peña, who met as researchers at the Optics Institute

Near-Field Radiative Heat Transfer Eigenmodes

Here, we present a theoretical framework to describe the temporal dynamics of the radiative heat transfer in ensembles of nanostructures, which is based on the use of an eigenmode expansion of the equations that govern this process.

Femtosecond laser induced thermophoretic writing of waveguides in silicate glass

In this work, the thermophoretic redistribution of lattice modifiers in silicate glasses when worked with a femtosecond laser has been studied.

The University of Salamanca appoints our colleague Susana Marcos as an honorary member

The University of Salamanca is the oldest university in Spain (800 years) and one of the oldest in Europe. The ceremony took place in the imposing Aula Magna of the historic building of the University.

Silicon photonic on-chip spatial heterodyne Fourier transform spectrometer exploiting the Jacquinot’s advantage

In the article, a scientific team involving the Institute of Optics has experimentally demonstrated a spatially heterodyne Fourier transform spectrometer on a silicon chip, which for the first time implements a large-area light harvesting system to simultaneously power a matrix of 16 Mach-Zehnder interferometers.

Offer JAE Intro of introduction to the investigation titled "Study and application of characteristics decoupled to deep learning"

Ref: JAEINT21_EX_1091 Training plan offered by researcher Javier Portilla Muelas and entitled: Study and application of uncoupled characteristics to deep learning Registration deadline until April 12

Current status and future developments of the ion beam installation at the Madrid materials microanalysis center

Information is provided on the current state of the ion beam laboratory of the Materials Microanalysis Center of the Autonomous University of Madrid. The 5MV throttle setup provides MeV ion beams from any stable element. The facility stands out especially for the use of high-energy heavy ions and microbeams, with important applications in materials science, optics and electronics, biology, cultural heritage and astrophysics.

JAE Offer Introductory introduction to the research entitled "Light and its interaction with matter: measurement and applications"

Ref: JAEINT21_EX_0135 Training plan offered by the researcher Alejandro Ferrero Turrión and entitled: Light and its interaction with matter: measurement and applications Registration deadline until April 12

A new fiber optic sensor monitors train tracks, water and gas pipelines with high resolution

The new system, in whose development a team from the Institute of Optics has participated, makes it possible to transfer the advantages of fiber optic sensors to fields such as aeronautics

JAE Offer Introductory introduction to research entitled "New active plasmonic metasurfaces based on phase change nanostructures"

Ref: JAEINT21_EX_0703 Training plan offered by researcher Rosalia Serna Galán and entitled: New active plasmonic metasurfaces based on phase change nanostructures

JAE Offer Introductory introduction to research entitled "Application of distributed sensing techniques in multicore fibers"

Ref: JAEINT21_EX_0574 Training plan offered by the researcher Pedro Corredera and entitled: Application of distributed sensing techniques in multicore fibers

Laser-Empowered Random Metasurfaces for White Light Printed Image Multiplexing

These surfaces allow the multiplexing of images, combining several images in one, and their application in the encryption of information or the security of documents.

Offer JAE Introductory introduction to the research entitled "Measurement of the topography of ocular surfaces in the presence of movements"

Ref: JAEINT21_EX_0679 Training plan offered by researcher Alberto de Castro

Tuning Electrogenerated Chemiluminescence Intensity Enhancement Using Hexagonal Lattice Arrays of Gold Nanodisks

Here, we characterize the optical properties of hexagonal arrays of gold nanodisks and how they impact the enhancement of ECL from the coreaction of tris(2,2′-bipyridyl)dichlororuthenium(II) hexahydrate and tripropylamine.

Isolated human crystalline lens three-dimensional shape: A comparison between Indian and European populations

The purpose of this study is to compare the central and complete geometric properties of isolated human crystals from Indian and European populations.

JAE Intro Offer entitled "Moiré Effects on Network Resonances"

Training plan offered by the researcher Alejandro Manjavacas and entitled: Effects of Moiré in Network Resonances The general objective of this project is to investigate Moiré effects on the optical response of periodic matrices of metallic nanostructures.

Increased Electrogenerated Chemiluminescence by Ruthenium Complexes Using Hexagonal Arrays of Gold Nanodisks

It was shown that the increase in the ECL intensity emitted by the ruthenium complexes strongly depends on the geometry of the periodic matrix, as well as on its dielectric environment. Adjusting these parameters, it was achieved that the periodic matrix increased the intensity of ECL emitted by the complexes 23 times.

Susana Marcos participates in the colloquium "Mujer, universidad, ciencia y sociedad".

The colloquiums will be attended by women with a recognised career in different professional fields.

Graphite to diamond transition induced by photoelectric absorption of ultraviolet photons

At present, two basic processes have been successfully tested to drive this transition: hard strokes and high-energy femtolaser excitation. They induce it by increasing the pressure or temperature in the graphite. In this work we present a third method that consists of the irradiation of graphite with ultraviolet photons of energies greater than 4.4 eV.

The CSIC Instituto de Óptica announces the fourth edition of the FOTÓN Awards, aimed at journalists and teachers

The awards recognize the dissemination of optics and photonics in the media and educational centers

The Optics Institute joins the international day of girls and women in science

Participating in various activities

L'Oréal-UNESCO For Women In Science awards Judith Birkenfeld along with 4 other researchers

The investigations will receive an endowment of 15,000 euros each to continue contributing to the future of renewable energies, the knowledge of the universe and the Earth or the early detection of diseases. The program, present in Spain for 21 years, has recognized 72 researchers and has given grants of 1.2 million euros. It also launches the #QueremosCiencia campaign to claim its role in society, more important than ever to guarantee a sustainable reconstruction after COVID-19. "For Women In Science" has been present in Spain for 21 years, since the first international prize was awarded to Margarita Salas. Since then, she has recognized 72 researchers in our country and has awarded grants worth a total of 1.2 million euros. An initiative with a long history that this year is celebrated in a context marked by the health and economic crisis of COVID-19, where the development of STEM (Science, Technology, Engineering and Mathematics) has proven to be more necessary than ever, no only to fight the virus, but to ensure sustainable economic reconstruction. This year the program also launches the #QueremosCiencia campaign to make the need for these disciplines visible in the digital environment.

Computational estimation of point-spread-function field in axially symmetric optical systems

The study proposes a variation of the conventional method of precise estimation of the field of PSFs avoiding certain normally used approximations.

Fundamental scattering quantities for the determination of reflectance and transmittance

In the article, the definition of two quantities has been proposed to describe the scattering-dispersion in an object, one that exclusively describes the reflection on the surface and the other that exclusively describes the scattering in its volume on the subsurface; these quantities are completely independent of the irradiation conditions and, therefore, can be considered more fundamental than BRDF and BSSRDF.

Multifocal Acceptance Score to Evaluate Vision

We present a comprehensive but clinically feasible metric (Multifocal Acceptance Score to Evaluate Vision, MAS-2EV) to assess vision with presbyopia corrections. The MAS-2EV is based on a set of images representing natural visual scenes in day and night conditions projected on screens from far and near, and stereopsis images at near. In this study, subjects viewed and scored images with different binocular corrections (distance monofocal corrections; bifocal corrections; monovision and modified monovision) administered with soft contact lenses (in young cycloplegic subjects) or with a binocular simultaneous vision simulator, the SimVis Gekko. We have found that MAS-2EV has sufficient repeatability and sensitivity to allow differentiation between corrections with only three repetitions. The MAS-2EV, especially in combination with visual simulators, can be applied to select prospective corrections of presbyopia in patients prior to contact lens fitting or intraocular lens implantation.

A CSIC team develops an ultra-long pulsed laser with multiple applications in science and industry

The technology on which it is based allows to achieve high powers and energies in femtosecond pulses with a more compact, simple, cheap and robust laser design The advance will allow applications that require high power in areas such as materials processing, telecommunications, biomedicine or metrology

Distributed Sensors Assisted by Modulated First-Order Raman Amplification

The article proposes a simplified implementation of virtual transparency in DOFS based on modulation of the Raman gain over time.

Joaquín Campos will be the next Chair of the EURAMET Photometry and Radiometry Technical Committee

Our colleague Joaquín Campos will be the next chair of the Technical Committee for Photometry and Radiometry of Euramet , the European association of national metrology institutes.

Vision is protected against blue defocus

Using Adaptive Optics, we investigated the optical and visual effects of correcting monochrome aberrations when viewing polychromatic images in gray, green, and blue scale. Correcting monochromatic aberrations of the eye improves the optical quality of focused green images, but (confirming our previous publication in Nature 2002) degrades the optical quality of out-of-focus blue images, particularly in eyes with higher amounts of monochrome aberrations. The perceptual judgments of image quality correlated the optical findings, but the perceptual impact of correcting monochromatic aberrations was less than the optical predictions. Interestingly, the same chromatic blur in green images decreased the perceived image quality significantly more than the native chromatic blur in blue images. The visual system then seems to adapt to the blur produced by native monochrome aberrations, as well as to blur in blue.

Lattice Resonances Induced by Periodic Vacancies in Arrays of Nanoparticles

In this article we employ a coupled dipole approximation to perform a comprehensive analysis of how particle size, matrix periodicity, and vacancy density determine the optical response of the matrix.

Anisotropic resistivity surfaces produced in ITO films by laser-induced nanoscale self-organization

In the presented article, surfaces with highly resistivity anisotropic have been produced. In the process indium tin oxide (ITO) sheets have been irradiated with a laser beam pulsed in femtosecond and operating at 1030nm.

Evolution of whispering gallery modes in Li-doped ZnO hexagonal micro-and nanostructures

In this work it was investigated the formation of optical cavities in Li doped ZnO nanostructures, which were grown by the vapor-solid method by which long micro and nanostructures with a hexagonal cross section were obtained.

Angular and Spectral Bandwidth Considerations in BRDF Measurements of Interference and Diffraction-Based Coatings

In the work, experimental data from highly goniochromatic samples have been used to analyze their impact on the measurement uncertainty. The results indicate that it is advisable to standardize the spectral and angular bandwidths, because the systematic error likely to appear is not negligible for typical measurement systems.

Waveguide tapers fabrication by femtosecond laser induced element redistribution in glass

The work presents the manufacture and subsequent performance of waveguide cones achieved by the action of a femtosecond laser on a modified phosphate glass.

Admissible surfaces in progressive addition lenses

Progressive lenses have gained worldwide acceptance as an optimal solution for presbyopia compensation in the presence of other ametropia (myopia or hyperopia), due to the possibility of focusing the view at different distances.

Mirrors for Space Telescopes: Degradation Problems

In addition to the deterioration produced by these environments, it is very difficult, usually impossible, to repair these mirrors once they have deteriorated.

The Lightlens project has won the XVI edition of the Entrepreneurs 2020 awards in the category Best Business Idea.

The LightLens project whose main researcher is Susana Marcos consists of the creation and marketing of an accommodating lens for people with presbyopia

Susana Marcos Celestino and María Josefa Yzuel Giménez, awarded the V Prize "Julio Peláez for Women Pioneers of Physics, Chemistry and Mathematics"

The president of the CSIC highlighted the fact that with this award two great scientists in the field of optics are even more visible in Spanish science.

In vivo measurement of shear modulus of the human cornea using optical coherence elastography

We report the first measurement of the shear modulus in human corneas in vivo using surface elastic wave-based optical coherence elastography (OCE)

Offer of thesis projects for candidates for a FPU 2020 contract

The Institute of Optics offers good working and professional conditions to be able to carry out the doctoral thesis with one of its projects.

The IST spectral portraits of the first order doubly periodic solutions of the nonlinear Schrödinger equation

We present the TSI spectral portraits for the extensive first-order three-parameter families of doubly periodic solutions of the nonlinear Schrödinger equation that span a wide range of physical phenomena such as modulational instability, shock waves, and many other problems with periodic boundary conditions.

VII Edition of the Justiniano Casas Prize for Research in Optical Imaging for Dr. Mario García Lechuga

Dr. Mario García Lechuga has won the first prize of the VII Edition of the Justiniano Casas Prize for Research in Optical Imaging, for the work related to his doctoral thesis entitled "Image techniques with temporal resolution applied to the processing of materials with ultrashort laser pulses" , directed by Dr. Francisco Javier Solís Céspedes and Dr. Jan Siegel carried out at the Daza de Valdés Optical Institute of the CSIC

Science week activity "Decoupling Features to Navigate the Universe of Data"

Francisco Javier de la Portilla Muelas and Eduardo Martínez Enriquez will give a presentation entitled "Decoupling characteristics to navigate the universe of data"

Science week activity "Eye movements and the problem of measuring in movement"

Our eyes are never completely stopped. Although we stare at something, they are always making small movements. These are hard to notice, but some examples will be shown in the talk so that attendees can see their own eye movements live.

New system for better detection of biomechanical abnormalities of the eye based on images in multiple sections of the corneal deformation by an air-puff

This article, which is included within the milestones of the project EU Horizon 2020 IMCUSTOMEYE , presents a novel swept-source optical coherence tomography system (SSOCT) custom developed, which together with a collinear air-puff excitation, is able to record dynamic corneal deformation in multiple meridians.

Anomalous relative intensity noise transfer in ultralong random fiber lasers

The paper presents for the first time an experimental demonstration of RIN noise transfer dampening at low frequencies in random distributed feedback ultralong Raman fibre lasers based on conventional telecommunication fibres.

Why does the Adachi procedure work to avoid divergence in optical models?

The article rigorously demonstrates the Adachi procedure. It also establishes the conditions to be able to apply this procedure. Finally, it is shown that the Adachi procedure is equivalent to a convolution procedure of the optical constants with Lorentz oscillators that the same authors had developed in 2018.

Optical and Visual Quality With Physical and Visually Simulated Presbyopic Multifocal Contact Lenses

In this study, we evaluated the ability of the visual simulator SimVis, developed by CSIC spin-off company 2EyesVision, to represent these MCL lenses. Through the approach, the optical and visual quality was measured with an aspheric MCL close to the center using a multichannel polychromatic Adaptive Optics visual simulator equipped with double-pass channels, SimVis (temporal multiplexing) and psychophysical to allow measurements on the bench and in vivo.

The Instituto de Óptica offers a contract FPI to work on the project "Transfer of energy and momentum using electromagnetic fluctuations"

The Optics Institute offers a contract # FPI2020 to work on the project "Transfer of energy and momentum using electromagnetic fluctuations" with the researcher Alejandro Manjavacas

Contact lenses, the reverse Pulfrich effect, and anti-Pulfrich monovision corrections

This study shows that the reverse Pulfrich effect can be caused by contact lenses that provide monovision corrections, and that the reverse Pulfrich effect can be eliminated with contact lenses that provide anti-monovision Pulfrich corrections.

Common path dual-frequency spectroscopy using a single electro-optical modulator

In this work, a double-frequency comb spectrograph is generated, but using a single modulator driven by an arbitrary waveform generator

Published the book "Modern Trends in Diatom Identification" by Gabriel Cristobal, Saúl Blanco and Gloria Bueno

This book provides information on the current state of the art in automatic identification systems in microscopy, describing the entire workflow of a bioindicator system, from capture, analysis and identification to the determination of water quality indices.

The ViOBio laboratory needs volunteers for a new study in which they will check which of your two eyes is the dominant one

Do you know which of your two eyes is the dominant?
Why do you think that in patients with tired eyes or falls it may be crucial to determine it?
The laboratory of "Visual and Biophotonic Optics" needs volunteers

A low-cost automated digital microscopy platform for automatic identification of diatoms

Each diatom species is adapted to a relatively specific ecosystem, so the quality of aquatic ecosystems can be inferred by obtaining indices of the diatom species present

A study has been carried out to improve the accuracy of the bidirectional reflectance measurement system

The laboratory of Photometry, Radiometry and Fiber Optics of the Instituto de Óptica has conducted a study to improve the accuracy of the measurement system of bidirectional reflectance (how light is reflected on a surface)

María Viñas, winner of the audience award at the EYRA 2020 awards

Our colleague María Viñas from the VioBio laboratory has received the EYRA 2020 award from the audience for Young Researchers in the postdoctoral category

Generation, control and erasure of dual LIPSS in germanium with fs and ns laser pulses

Laser-induced periodic surface structures (LIPSS) can readily be fabricated in virtually all types of materials and benefit from an efficient parallel patterning strategy that exploits self-organization. The wide range of different LIPSS types with different spatial scales and symmetries is continuously growing, addressing numerous of applications, such as changing the color of a metal surface or facilitating the integration of a medical implant into the body. In this work is shown a new type of LIPSS (Laser Induced Periodic Surface Structures) in Germanium called HSFL-∥, after the exposure to the multiple pulse laser irradiation (N> 50) fs, in addition to the known LSFL. The main characteristics of HSFL-∥ are a wavelength ripple period of Λ_∥ = 400 ± 50 nm, half of the laser wavelength and an orientation parallel to the polarization direction of the laser.

Transforming fiber optics on the seabed into a seismic network to detect earthquakes

- This summer, a group of researchers will convert the fibre optic cables installed on the seabed in the Canary Islands into a seismic network to detect earthquakes. - The experts will use DAS technology, which allows them to convert a fibre optic cable into a very dense network of seismic sensors capable of detecting earthquakes thousands of kilometres away from their epicentre.

Published an article about laser manufacturing of biologically active surfaces for many industrial applications.

This article by the laser processing group of the optics institute in collaboration with other partners from its previous European project LiNaBioFluid reviews the current status of laser processing methodologies, which are used to manufacture bioinspired artificial surfaces to obtain wetting, optical properties, Outstanding mechanical and biologically active for numerous applications.

The Institute of Optics participates in online seminars on the chromatic aberration of the human eye

Researchers from the Institute of Optics participate in free online seminars on the chromatic aberration of the human eye organized by the OSA's Vision Technical Group.

Audio guides created for the exhibition "A Universe of Light" held by the Institute of Optics in 2015

What was the first light of the cosmos? What are mirages? What would our daily life be like without technologies such as lasers, fibre optics or solar panels? These are just some of the questions answered by the new audio guides in the exhibition 'A Universe of Light', produced by the Institute of Optics (CSIC) as part of the International Year of Light 2015.

New web site of the Thin Film Optics Group

The Thin Film Optics Group (GOLD) has published today its new website (gold.io.csic.es).

Announced winners of Fotón 2020 Awards

The Instituto de Óptica "Daza de Valdés" of the Spanish National Research Council (CSIC) has announced the winners of its Fotón 2020 Awards, an initiative that this institute promotes in collaboration with the Spanish Society of Optics and with the Southern European Cluster in Photonics and Optics (SECPhO).

Francesca Gallazzi's thesis defense on May 18

Next Monday 18th May at 10h Francesca Gallazzi will defend at the University of Alcalá de Henares her thesis "Ultralong continuous wave and ultrafast fibre lasers at telecommunication wavelengths".

VioBio lab launch the transfer to the market of intraocular lenses capable of replicating the eye's young crystalline lens

The Lightlens initiative, promoted by Susana Marcos" team (National Research Award 2019) at the Daza Valdés Optics Institute of the CSIC, expects to obtain its first pre-commercial prototype in 2026.

Intraocular lenses that replicate the young crystalline lens designed at the Institute of Optics

Scientists at the Institute of Optics have started transferring to the market intraocular lenses capable of replicating the young crystalline lens of the eye. The aim is to restore clear vision and improve quality of life by eliminating the use of glasses in people with presbyopia or eyestrain. The Lightlens initiative, promoted by Susana Marcos" team (National Research Award 2019) at the CSIC"s Daza Valdés Optics Institute, hopes to obtain its first pre-commercial prototype in 2026.

Start of the FOCUSIS project by Camilo Florian Baron and the LPG

We are glad to announce the beginning of the project "Focal volume Control Using Structured Illumination Sources - FOCUSIS" funded by an Individual Fellowship Marie Skłodowska-Curie actions of the European Commission.

Postponement of the 30 Introduction Course to Research in Optics, from 16-17 April 2020

The prevention measures recommended by the CSIC recommend that we postpone the introductory course in optics research.

10 month contract offer on the GPL

The Laser Processing Group (LPG) of the Institute of Optics of the CSIC offers a 10-month full-time contract, associated to a European FET ILP Project of the H2020 program, for the performance of laser material processing tasks and their subsequent characterization.

Recognition of measurement patterns from the Institute of Optics

On February 21st, it was published in the B. O. E. the ministerial order ICT/149/2020, of 7 February, which recognises the light intensity and luminous flux patterns developed by the IO-CSIC as the national patterns of these magnitudes.

Talk by Carlos Dorronsoro in the session of success stories of the Transfiere forum

Our fellow researcher Carlos Dorronsoro gave a talk today at the 9th European Forum for Science, Technology and Innovation (Transfer) of Malaga, in the session of "Success stories
of Public Research Organizations (OPIS) ".

The Institute of Optics participates in the International Day of Girls and Women in Science

The Institute of Optics has participated this year in the promotion of the International Day of Girls and Women in Science by organizing events, lectures and creating graphic material for the occasion.

Published the book "Instrumentos de la ciencia española. Los aparatos históricos del CSIC"

The researcher Esteban Moreno has published a book entitled "Instrumentos de la ciencia española. Los aparatos históricos del CSIC" in which he compiles the 30 most important scientific instruments of the CSIC in the last three centuries.

These instruments have been selected among the instruments recovered in the Plan for the Recovery of Scientific Instrumentation of Historical Interest of the CSIC from the MuseoVirtual.csic.es

Distributed sensing of microseisms with submarine dark fibers

A work coordinated by Hugo Martins, researcher Juan de la Cierva of the nonlinear Dynamics and Optical Fibers group of the institute has been published in Nature Communications.

The work has been carried out in collaboration with the University of Alcalá and the Technological Institute of Californica (Caltech).
It contains the results of the tests that have been carried out at the bottom of the North Sea, in which they have used fiber optic communications cables installed as a giant seismic network, in order to track distant earthquakes and ocean waves.

"Physics, Innovation and Technology" award from the Royal Spanish Society of Physics to Carlos Dorronsoro

Our colleague Carlos Dorronsoro received the Physical, Innovation and Technology Prize on December 12 for developing and transferring optical technologies with a high social and economic impact.

"Optics and light: from astronomy to the eye" By Susana Marcos

In this conference, entitled "Optics and light: from astronomy to the eye", the CSIC researcher addressed from a didactic approach the development of new diagnostic techniques, treatment and correction of problems such as myopia or presbyopia through research on Optics and light.

The CSIC joins the Salamanca Science Week with the exhibition ‘A Universe of Light’ at the Casa de las Conchas

The director of the Instituto de Óptica "Daza de Valdés", Juan Diego Ania Castañón and the institutional delegate of the CSIC in Castilla y León, Mar Siles, inaugurated this Monday the exhibition "Universe of Light", which can be visited throughout this November in the High Courtyard of the Casa de las Conchas. The exhibition has been prepared on the occasion of the Science Week, an event of scientific dissemination that is celebrated throughout Europe.

Imitating the morphology of animals and plants for improving materials

Scientists in the European project LiNaBioFluid have researched the microstructures that give amazing qualities to animals and plants. These microstructures can be reproduced by laser on several materials to overcome technological issues. Now, a new project, will implement some of the results copying vegetal morphologies on natural stones to protect them and extend its lifetime.

The “Bidirectional reflectance definitions” (BiRD, 16NRM08) project of the EMPIR program, highlighted by EURAMET

This research project in will provide a methodology to measure the visual attributes known as "sparkle" and "graininess" and to develop a measurement scale.

Presentation of the FET open ILP BioProMarl project

Presentation seminar of the new BioProMarl research project on the protection of the marble surface based on the knowledge acquired in the previous scientific project, LINaBioFluid.

The CSIC and the Levantina company collaborate in this project.

2019 RSEF Physics, Innovation and Technology Award for Carlos Dorronsoro

The prize has been awarded for “his research activities aimed at the development and transfer of optical technologies with social and economic impact”. The jury highlighted “his professional career always linked to innovation in physics, identifying his business opportunities”.

24th CCPR Meeting

With the presentation of the research "Traceable sea water temperature measurements performed by optical fibers"

CSIC researchers develop an accommodative lens capable of imitating the human lens to correct presbyopia

The new intraocular lens, designed by scientists at the Institute of Optics, changes its way to focus distant and near objects regulated by the ciliary muscle

First implants in patients with an extended focus intraocular lens patented by the IO_CSIC

The new lens increases the focus range of monofocal lenses that are conventionally used in the treatment of cataracts

JOB OFFER: Industrial PhD

Industrially focused research project and PhD education to be carried out in collaboration between a private company, 2Eyes Vision, and a public research institution, the Visual Optics and Biophotonics Lab at the Institute of Optics of the CSIC, in Madrid.

Monovision, although compensating for tired eyesight, generates adverse effects of distance perception

An international team with the participation of researchers from the Institute of Optics "Daza de Valdés" of the CSIC have discovered that monovision can cause errors in the calculation of distance for moving objects.

Susana Marcos wins the National Research Award 2019

Our colleague Susana Marcos has been awarded the National Research Award 2019 "Leonardo Torres Quevedo", in the area of Engineering for its pioneering contributions to optical and photonic engineering, and the industrial development of diagnostic and correction instruments in ophthalmology.

Talk and coffee organized by IOSA about LGBTSTEM

Last Friday, July 5, IOSA organized a coffee talk on the occasion of the international LGTBI + day to exhibit the collection of posters that they prepared with information regarding the LGBT community in science in which they are aware of the situation of the LGBT + collective in STEM

Distributed detection of hydrogen and deuterium diffusion into a single-mode optical fiber with chirped-pulse phase-sensitive optical time-domain reflectometry

We present here a chemical sensor based on chirped-pulse phase-sensitive optical time-domain reflectometry (CP-φOTDR), which is able to detect these species while they diffuse into the silica fiber.

An ultra-sensitive aptasensor on optical fibre for the direct detection of bisphenol A

We present a plasmonic biosensor capable of detecting the presence of bisphenol A in ultra-low concentrations, yielding a wavelength shift of 0.15 ± 0.01 nm in response to a solution of 1 fM concentration with limit of detection of 330 ± 70 aM

Towards faster and more efficient memory devices in Science paper

An international team with the participation of the Higher Council for Scientific Research (CSIC) has shown that a transition in the chemical bonding mechanism facilitates the storage of data in phase change materials, substances that are currently used, for example, in the manufacture of the latest generation mobiles. The results, published in the journal Science, could be used to optimize these materials and develop new faster and more effective information storage technologies.

The CSIC celebrates the International Day of Light with the presentation of the Fotón Awards of the Instituto de Óptica "Daza de Valdés"

Today, the ceremony for the Premios Fotón awards of the IO-CSIC was held in the assembly hall of the CSIC headquarters. The awards were given by our Vice President of Organization and Institutional Relations, Víctor Velasco.

The Instituto de Óptica of the CSIC announces its Fotón 2019 awards

• In the category "Fotón Emitido", the first prize went to Laura
Chaparro, for her article "La nueva era de los materiales invisibles"

• The activity "Engañando a la Vista", presented by the Diego Velázquez
de Torrelodones Public High School and Secondary School (Madrid), has
received the "Fotón Absorbido" award

The Real Academia de Ciencias has awarded the Ramón y Cajal Medal 2019 to Susana Marcos

The award ceremony will be held in a solemn session yet to be determined, which will be held next academic year.

Susana Marcos wins an ERC Advanced Grants

Only three CSIC projects have received grants in the Advanced Grants category, in addition to a researcher who is a partner in a fourth project.

An international team led by IO researchers develop a portable biosensor capable of detecting Bisphenol A at very low concentrations

The biosensor consists of a series of gold nanoantennas over a length of 2.3 centimeters of optical fiber. Molecules sensitive to the contaminant that is to be detected are immobilized on these nanoantennas. The behavior of the light passing through the fiber depends on the resonance frequency of the collective oscillations of the conduction electrons or "surface plasmons", which in turn depends on the concentration of the pollutant.

Scientists from the Instituto de Óptica (CSIC) take steps to replace our current electronic devices with optical devices.

David González Andrade, along with other researchers from the Institute of Optics, the Center for Nanosciences and Nanotechnologies of Paris and the National Research Council of Canada have published in the prestigious journal Scientific Reports a new nanophotonic divider for silicon circuits. This novel device has high bandwidth, independence to polarization and is resistant to manufacturing defects, assuming a breakthrough for the development of future photonic chips.

A portable CSIC simulator allows the patient to experience how to improve his vision before surgery

Today, scientists from the Institute of Optics have presented at a press conference for television the new device called SimVis, which allows the patient and surgeons to experience how they will improve their vision before undergoing cataract or presbyopia surgery.

The Instituto de Óptica announces the second edition of the FOTÓN Awards

Second edition of the Fotón Awards for scientific communication and teaching in the school of the Instituto de Óptica "Daza de Valdés" del CSIC

Presentation of the book "Descubriendo la luz, experimentos divertidos de óptica" in TV

María Viás Peña and Xoana Barcala Gosende appeared on January 22 on the Spanish television program "La tarde en 24h" to explain some concepts of day-to-day optics and present their latest book "Descubriendo la luz, experimentos divertidos de óptica"

Low-dimensional nano-patterned surface fabricated by direct-write UV-chemically induced geometric inscription technique

We investigate a nano-patterning process which creates reproducible periodic surface topological features that range in size from ∼100 μm to ∼20 μm. Specifically, we have fabricated multi-layered thin films consisting of germanium/silicon strata on a planar substrate, with each layer having nanometers thickness.

CSIC and Editorial Catarata present “Descubriendo la luz. Experimentos divertidos de Óptica”.

It is a book made by present and past members of IOSA, the student chapter of OSA and EPS of the Institute of Optics, edited by the publisher Catarata (Collection Disclosure, CSIC), aimed at the general public, but with special emphasis on students and teachers of all levels of Secondary Education. It is an informative and didactic proposal with experiments related to the different phenomena and optical instruments, which we hope will contribute to improve the teaching of Optics.

The IO is part of the new network of the Spanish Center of Metrology and Associated Laboratories

The Spanish Metrology Center and its Associated Laboratories have created a network for opening their unique research facilities to the scientific community.

The candle, made by the IO in Spain, reformulated in the new SI

On November 16, the General Conference on Weights and Measures adopted a resolution in which new definitions were approved for four of the base units of the SI: kilogram, ampere, kelvin and mol, which are redefined in terms of universal constants.

5th edition of the IOSA scientific seminars

IOSA (IO-CSIC OSA-EPS student chapter) carries out several outreach activities to spread Optics Science among general population. This activity is developed by the IOSA members: young researchers and pre- doctoral students of the Institute of Optics (CSIC), working on different fields related to Optics such as visual optics and biophotonics, lasers, digital processing of images, fiber optics, material processing or theoretical and experimental studies on the optical properties of matter. We will count also on the presence as invited speaker of Prof. Javier Alda, from the Faculty of Optics and Optometry of Universidad Complutense (Madrid). ABSTRACT SUBMISSION DEADLINE Sunday, 9th December

ALCYON PHOTONICS: A new IO-CSIC spin-off company to harness the potential of optic chips

IO-CSIC announces the winners of the Photon Prize 2018