INSTITUTO DE OPTICA. CSIC

Instituto de Óptica "Daza de Valdés" Español | English

Laser Processing Group (LPG)

Group description:
The activity of the Laser Processing Group (LPG) focuses on the study of both fundamental and applied aspects of laser-matter interaction aiming at discovering, understanding and controlling laser-matter interaction phenomena down to the nanometer (spatial) and femtosecond (temporal) scales. As a result, we perform internationally relevant research in the fields of photonics, nanotechnology and ultrafast science. The LPG uses state-of-the-art, laser-based technologies and innovative approaches for the production of nano- and meta-materials and innovative and ultrafast processing methods. These are aimed at producing improved materials and devices. The different applications addressed include photonics/ICTs (waveguide integrated lasers or amplifiers, solid state lightening devices, …), sensors (tailored nanostructures for SERS, multifunctional 3D self-organized nanostructures) and fluidics/tribology applications based on biomimetics or self-organization phenomena.

Contact Information:
Investigadores de plantilla / Research staff: Javier Solís: j.solis@csic.es Rosalía Serna: rosalia.serna@csic.es José Gonzalo de los Reyes: j.gonzalo@csic.es Jan Siegel: j.siegel@csic.es Mario García Lechuga: mario.garcia.lechuga@csic.es
External link:
http://lpg.io.csic.es/people

Associated Staff
Group leader: Solís Céspedes, Francisco Javier - Solís Céspedes, Francisco Javier - Serna Galán, Rosalia - Gonzalo de los Reyes, José - Siegel, Jan Philip - García Lechuga, Mario - Cabello Pardos, M.Pilar Fátima - García Pardo, Marina - Solana Ramírez, Irene - López González, María del Carmen - Nieto Piñero, María Eva


Announcements
Congresses and Conferences Next Monday, February 10th, scientific seminar by Rocío Ariza 2025-02-05 The seminar will be in the Serrano 113bis meeting room. It is titled “Unlocking new frontier in light management for perovskite solar cells“. News Selective growth of ZnO micro- and nano-structures on fs-laser processed metallic Zn substrates for large area applications 2025-01-23 The resulting ZnO structures have high photocatalytic activity, effectively degrading contaminants such as rhodamine B Tuning spike-like morphologies in Silicon by sustainable fs-laser processing in air for enhanced light absorption 2025-01-21 New femtosecond laser processing method to produce black silicon in air with absorption of over 94% between ultraviolet and near infrared, without the need for greenhouse gases developed. Optoplasmonic tuneable response by femtosecond laser irradiation of glass with deep-implanted gold nanoparticles 2024-11-28 Ion implantation of Au2+ at MeV energies has enabled the creation of nanoparticles embedded at greater depth, resulting in a Fabry-Perot cavity within the material. Congresses and Conferences On November 20th, David Grojo from CNRS will give a lecture entitled “New Dimensions Open to Ultrafast Laser Material Modifications” 2024-11-13 The seminar is organized within the framework of the ILINK22056 project “UnderControl: Understanding and controlling volumetric laser-induced modifications in materials for advanced photonic applications” Next Monday, November 25th, scientific coffee with María Eva Nieto Piñero 2024-11-11 This month, we will be holding the IO Scientific Café on Monday 25th with the talk “Journey through the crystal” by María Eva Nieto from the Laser Processing group. News Optoelectronic properties of GaP:Ti photovoltaic devices 2024-11-07 UCM scientists, in collaboration with the IO-CSIC and the UAM, have developed a new solar cell based on GaP:Ti that increases light absorption at low energy. Tailoring the Lithium Concentration in Thin Lithium Ferrite Films Obtained by Dual Ion Beam Sputtering 2024-09-25 Researchers develop advanced technique for tuning lithium concentration in lithium ferrite thin films, with applications in spintronics. Congresses and Conferences Next Thursday, September 26th, scientific coffee with José Gonzalo de los Reyes 2024-09-13 This month, we will celebrate it in Serrano 144, Aula III (second floor) at 11h. News Amorphization and Ablation of Crystalline Silicon Using Ultrafast Lasers: Dependencies on the Pulse Duration and Irradiation Wavelength 2024-08-29 Study reveals how ultrashort laser pulses can transform crystalline silicon into amorphous silicon Building nanoplatelet α-MoO3 films: A high quality crystal anisotropic 2D material for integration 2024-08-20 A technique has been developed to produce large 2D α-MoO3 nanoplatelets perpendicular to the film surface. Congresses and Conferences Predoctoral contract offer in the Laser Processing Group 2024-08-13 The framework of the thesis is included in the activities of the HyperSpec project (Laser Functionalization Synergies and Hyperdoping for Spectrally Selective Devices News Versatile femtosecond laser interference patterning applied to high-precision nanostructuring of silicon 2024-08-09 The scientists were able to improve on previous work by manufacturing gratings with tunable periods of up to 650 nm and amorphous silicon dots with feature sizes of up to 120 nm. Dynamic restructuring of nickel sulfides for electrocatalytic hydrogen evolution reaction 2024-08-02 The work has implications for the development of efficient and low-cost electrocatalysts for the production of green hydrogen. Preferential out-of-plane growth of two-dimensional molybdenum diselenide flakes on laser-induced periodic surface structures 2024-07-29 A study that explores the possibility of growing sheets of 2D material, specifically molybdenum diselenide (MoSe2), with a preferential vertical orientation. Composition-dependent PMS activation in SrxLa2-xCoO4±δ perovskite-derivatives: From radical to strengthen the electron-transfer pathway 2024-06-09 This research provides a deeper understanding of how the electronic structure of cobalt in perovskite oxides influences the PMS activation mechanism. Dynamics of phase transformations in Si and Ge upon strong excitation with UV femtosecond laser pulses 2024-06-05 Here, we report a detailed time-resolved study on the phase transformation dynamics of crystalline silicon and germanium upon irradiation with single 400 nm, 100 fs laser pulses in the moderate and high excitation regime. Congresses and Conferences On Thursday, May 23, scientific coffee with Irene Solana 2024-05-20 It is titled "Tuning the optoplasmonic response in implanted glasses using fs laser irradiation: Definitive guide." News Unveiling the non-innocence of vanadium dopant in TiO2 nanocrystals for advanced energy storage and smart windows 2024-05-08 This study explores the use of a combination of advanced in situ spectroscopy techniques to provide unprecedented insights into the intricate electrochemical reaction mechanisms within these nanocrystals. Optical, Electrical, and Optoelectronic Characterization of Ti-Supersaturated Gallium Arsenide 2024-04-26 Herein, a detailed investigation on the properties of supersaturated gallium arsenide (GaAs) using Ti+ implantation followed by nanosecond pulsed laser melting (PLM) is presented. Congresses and Conferences Irene Solana Ramírez, third Focus Prize 2022-2023 for her Master’s thesis dedicated to laser processing of gold-doped glasses with plasmonic response. 2024-03-18 The awards are organized by the SEDOPTICA Young Area. A Marie Skłodowska-Curie contract awarded to the project (SPARKLES) led by Rocío Ariza, former member of the Laser Processing Group 2024-02-22 The project´s name is “Femtosecond laser processing for micro- and nanopatterning of metal halide perovskite thin films for enhanced light management in solar cells” (SPARKLES) News Tunable light emission from Bi- and V-doped borosilicate glasses for application in white light-emitting diodes. 2024-02-14 It is a challenge nowadays to find materials for LED lamps that emit white light similar to natural light, especially without the use of rare earths. Femtosecond laser thinning for resistivity control of tungsten ditelluride thin-films synthesized from sol-gel deposited tungsten oxide 2024-01-17 Researchers succeed in controlling electrical resistivity in the generation of tungsten ditelluride (WTe₂) thin films using a femtosecond laser. Construction of conventional metasurfaces with unconventional interband plasmonics: a versatile route for sustainable bismuth-based structural color generation 2024-01-11 A team led by the Laser Processing group has published the development of a new technique for the sustainable and economical generation of structural colors using plasmonic metasurfaces CSIC is creating a new technology to make the future’s solar energy quantum and with temperature self-regulation 2023-11-23 The Materials Science Institute of Madrid and the Institute of Optics participate in a European project financed with 3.6 million euros. Congresses and Conferences Thursday, November 30, scientific coffee with Fátima Cabello Pardos 2023-11-22 It is titled "Interrogating materials with light". News An Integrated Pump-Controlled Variable Coupler Fabricated by Ultrafast Laser Writing 2023-11-17 A team of researchers from the University of Zaragoza and the Laser Processing Group of the IO-CSIC have designed and manufactured a symmetrical directional coupler integrated on a chip that changes the output signal with the pump power and operates at a wavelength of 1534 nm. Innovative Approaches for Organizing an Inclusive Optics and Photonics Conference in Virtual Format 2023-10-25 The study reveals the favorable impact of inclusive policies and the use of technological tools at the XIII Spanish Optics Meeting (RNO2021) Congresses and Conferences Seminar “Overcoming the challenges of ultrafast laser processing of semiconductors” on 10/26 at 4 p.m. 2023-10-24 The lecture will be given by Pol Sopeña, from Aix-Marseille Université, CNRS, LP3. Marseille, France, in the center’s conference room (c/ Serrano, 121). News Start of the METASCALE project financed by a Marie Skłodowska-Curie contract awarded to our colleague Carlota Ruiz de Galarreta 2023-09-19 The METASCALE project will focus on exploring the potential and limitations of laser processing techniques for the fabrication of high-performance optical metasurfaces designed to operate in different spectral regimes. High-quality, optically active and integrable EuOOH films prepared by pulsed laser deposition 2023-09-18 A team of scientists led by researchers from the Spanish National Research Council (CSIC) and the Carlos III and Autonomous Universities of Madrid has developed an innovative method for the preparation of high-quality europium oxyhydroxide (EuOOH) thin films. Modeling optical amplification in Er/Yb-codoped integrated Bragg gratings 2023-07-27 A team of researchers from Zaragoza and Madrid have developed an innovative numerical method to simulate and understand the behavior of Er/Yb codoped waveguide-integrated Bragg gratings. Amplitude-Only Light Modulator Could Improve Photonic Device Efficiency 2023-07-27 A new, one-of-a-kind spatial light modulator, capable of potentially ultrafast light modulation only in amplitude (without inducing changes in phase), has been presented in the journal Advanced Optical Materials. Wavelength-Independent Performance of Femtosecond Laser Dielectric Ablation Spanning over Three Octaves 2023-07-18 The importance of wavelength in laser processing with ultrashort pulses of dielectric materials is characterized, covering a spectral range unprecedented in the literature: from ultraviolet (258 nm) to mid-infrared (3500 nm). Three researchers from the Laser Processing group have published a chapter in the book “Ultrafast Laser Nanostructuring” 2023-07-10 The book analyzes the success of laser process strategies for the fabrication of nano and micro-structures. Temperature-Dependent Anisotropic Refractive Index in β-Ga2O3: Application in Interferometric Thermometers 2023-07-04 An international study in which the Laser Processing Group of the IO-CSIC has participated has investigated the variations with temperature of the anisotropic refractive index in β-Ga2O3 for its application in interferometric nano-thermometers. Congresses and Conferences Thesis defense of Noemí Casquero today June 9 2023-06-09 Our colleague Noemí Casquero from the laser processing group will defend her doctoral thesis on 9 June at 11.30 a.m. Sala de Grados, Module 8, of the Faculty of Science UAM. Cantoblanco Campus (Madrid). Job offer for pre-doctoral researcher in the LPG group 2023-05-17 Will carry out research on the production of micro and nano-structures with ultra-short laser pulses Expected date Start date: September 1, 2023 Interacción de luz y materia en la nanoescala: de los daguerrotipos a las interacciones de Casimir 2023-04-24 Next Wednesday, April 26, at 12 noon, we will have a seminar given by Alejandro Manjavacas, a researcher at the CSIC Institute of Optics, entitled “Interacción de luz y materia en la nanoescala: de los daguerrotipos a las interacciones de Casimir”. Women from the Institute of Optics “Daza de Valdés” 2023-03-08 At the Institute of Optics " daza de Valdés" we wanted to make visible the women who work in the institute in a series of photos. News Silicon oxynitride nanofilms prepared by PLD with controlled Eu-local concentration for broadband white light emitters 2023-03-07 In the Laser Processing Group of the Institute of Optics of the CSIC, research is being carried out on the manufacture of semiconductors with thicknesses on the nanometer scale (nanosheets) and which are doped with europium ions to achieve a new LED that emits white light efficiently A new ceramic material could be used to manufacture batteries without dependence on lithium 2023-02-15 Scientists from the Institute of Optics of the Higher Council for Scientific Research (CSIC) and the Complutense University (UCM) have developed a new ceramic material with improved electrical properties that could serve as the basis for the future manufacture of batteries without dependence on lithium. Filtering and Modulation from the Infrared to the Terahertz using Phase-Change Extraordinary Optical Transmission Metasurfaces 2023-02-03 Scientists have created a new A type of infrared filter that can let light through, but only in a certain bandwidth. By combining these structures with phase change chalcogenides (whose refractive index changes abruptly through crystallization and remorphization by optical or electrical pulses), these filters become reconfigurable, allowing one spectral band or another to pass depending on the structural phase of the chalcogenide. employee. Optical Properties of 2D Micro- and Nanostructures of ZnO:K 2023-01-13 Influence of Heat Accumulation on Morphology Debris Deposition and Wetting of LIPSS on Steel upon High Repetition Rate Femtosecond Pulses Irradiation 2022-12-22 A IO-CSIC team visualizes in 3D the temporal evolution of the steel surface during laser processing 2022-11-23 Spectroscopic ellipsometry study of Cu2Zn(GexSi1-x)Se4 bulk poly-crystals 2022-09-16 Propagation dynamics of the solid–liquid interface in Ge upon ns and fs laser irradiation 2022-08-31 Pulsed laser deposition and structural evolution of BaF₂ nanolayers in Eu-doped BaF₂/Al₂O₃ layered optical nanocomposite thin films 2022-07-13 Enhanced Light Absorption in All-Polymer Biomimetic Photonic Structures by Near-Zero-Index Organic Matter 2022-03-23 Do you know what slow light is? Emulating the complex photonic structures of some plants to achieve enhanced light absorption. Nanosecond Laser Switching of Phase-Change Random Metasurfaces with Tunable ON-State 2022-03-15 Towards photonic devices for computing: optical switching. Congresses and Conferences The Institute of Optics welcomes Professor Hernando García 2022-02-16 He comes on a sabbatical from the Southern Illinois University Edwarsville (SIUE) Department of Physics. 11F visit to IES Blas de Otero by researchers from the Institute of Optics 2022-02-14 On February 11, 2022, Rosalía Serna and Eva Nieto from the Laser Processing Group of the Institute of Optics gave a talk entitled: “I am a scientist” to second year ESO students at IES Blas de Otero Incorporation of Mario García Lechuga to the Institute of Optics 2022-02-14 Today, February 14, Mario Garcia Lechuga has joined us at the Institute of Optics with a permanent PhD position. International Day of Women and Girls in Science 11F 2022-02-11 From the Institute of Optics we want to contribute our grain of sand by making visible the women who work in each research group, and who, in addition to their scientific work, are very active in fields of dissemination and awareness. News Toward White light emission from hybrid nanostructures 2021-11-12 Competition Effects During Femtosecond Laser Induced Element Redistribution Between Ba and La in Laser Written Waveguides 2021-07-22 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 . Deep Silicon Amorphization Induced by Femtosecond Laser Pulses up to the Mid-Infrared 2021-07-16 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. The effect of annealing temperature on Cu₂ZnGeSe₄ thin films and solar cells grown on transparent substrates 2021-06-21 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.} Vapor-solid growth ZnO:ZrO₂ micro and nanocomposites 2021-06-04 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. JAE Offer Introductory introduction to research entitled "New active plasmonic metasurfaces based on phase change nanostructures" 2021-03-23 Ref: JAEINT21_EX_0703 Training plan offered by researcher Rosalia Serna Galán and entitled: New active plasmonic metasurfaces based on phase change nanostructures Laser-Empowered Random Metasurfaces for White Light Printed Image Multiplexing 2021-03-18 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. Anisotropic resistivity surfaces produced in ITO films by laser-induced nanoscale self-organization 2020-12-21 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 2020-12-16 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. Waveguide tapers fabrication by femtosecond laser induced element redistribution in glass 2020-12-04 The work presents the manufacture and subsequent performance of waveguide cones achieved by the action of a femtosecond laser on a modified phosphate glass. VII Edition of the Justiniano Casas Prize for Research in Optical Imaging for Dr. Mario García Lechuga 2020-11-11 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 Generation, control and erasure of dual LIPSS in germanium with fs and ns laser pulses 2020-08-25 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. Start of the FOCUSIS project by Camilo Florian Baron and the LPG 2020-03-16 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. 10 month contract offer on the GPL 2020-03-10 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. Imitating the morphology of animals and plants for improving materials 2019-10-31 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. Congresses and Conferences Seminar 3-oct "Laser processing of plasmonic metasurfaces for security" 2019-10-01 Seminar to be held this Thursday, October 3, 2019 at 11:30 in the IO conference room, Serrano 121. The conference will be given by Nathalie Destouches of the Laboratoire Hubert Curien of the Univ Lyon / CNRS, in Saint-Etienne, France. News Towards faster and more efficient memory devices in Science paper 2019-06-14 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 institute announces the first call for the new FOTON awards 2018-02-28 IO takes part in the national Nanoscience and Technology festival 2018-02-21 Bespoke photonic devices using ultrafast laser driven ion migration in glasses 2018-02-12 Javier Solís, new member of the Royal Academy of Sciences of Zaragoza 2017-11-08 Introductory video-presentation of Optics Institute 2015 2015-04-17 Ultrafast Lasers: Progress in I+D and Industry Applications 2014-10-17

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Investigación financiada por el Ministerio de Ciencia e Innovación y la Agencia Estatal de Investigación

Instituto de Óptica "Daza de Valdés"
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C/ Serrano, 121
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