Listar por autoría "1632af85-53cc-4b39-b931-721dbb684798"

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    • openAccess   Active wavefront compensation of broadband femtosecond laser pulses through pupil segmentation 

      Loriot, Vincent; Mendoza-Yero, Omel; Pérez Vizcaíno, Jorge; Mínguez-Vega, Gladys; Lancis, Jesús; De Nalda, Rebeca; Bañares, Luis Spriger (2014-10)
      Wavefront aberrations play a major role when focusing an ultrashort laser pulse to a high-quality focal spot. Here, we report a novel method to measure and correct wavefront aberrations of a 30-fs pulsed ...

    • closedAccess   Characterization of Tin/Ethylene Glycol Solar Nanofluids Synthesized by Femtosecond Laser Radiation 

      Torres-Mendieta, Rafael; Mondragón Cazorla, Rosa; Puerto-Belda, Verónica; Mendoza-Yero, Omel; Lancis, Jesús; Juliá Bolívar, José Enrique; Mínguez-Vega, Gladys John Wiley & Sons, Ltd. (2016-11-22)
      Solar energy is available over wide geographical areas and its harnessing is becoming an essential tool to satisfy the ever-increasing demand for energy with minimal environmental impact. Solar nanofluids are a novel solar ...

    • openAccess   Complex shaping of the depth of focus 

      Mendoza-Yero, Omel Optical Society of America (2020)
      In this manuscript an exact solution to the inverse problem of axial beam shaping along the focus of a convergent lens is found. This allows to extend, within the framework of the scalar theory of diffraction, the mathematical ...

    • openAccess   Contribution to the Improvement of the Correlation Filter Method for Modal Analysis with a Spatial Light Modulator 

      Benedicto, David; Collados, María Victoria; Martín, Juan C.; Atencia Carrizo, Jesús; Mendoza-Yero, Omel; Vallés, Juan A. MDPI (2022)
      Modal decomposition of light is essential to study its propagation properties in waveguides and photonic devices. Modal analysis can be carried out by implementing a computer-generated hologram acting as a match filter ...

    • openAccess   Controlled Multibeam Supercontinuum Generation With a Spatial Light Modulator 

      Borrego Varillas, Rocío; Pérez Vizcaíno, Jorge; Mendoza-Yero, Omel; Mínguez-Vega, Gladys; Vázquez de Aldana, Javier R.; Lancis, Jesús IEEE (2014)
      We report on deterministic femtosecond multifilamentation in fused silica by encoding a diffractive microlens array into a spatial light modulator. The efficiency and focal length of each microlens are modified through ...

    • openAccess   Diffraction-Based Phase Calibration of Spatial Light Modulators With Binary Phase Fresnel Lenses 

      Mendoza-Yero, Omel; Mínguez-Vega, Gladys; Martínez-León, Lluís; Carbonell Leal, Miguel; Fernández Alonso, Mercedes; Doñate-Buendía, Carlos; Pérez Vizcaíno, Jorge; Lancis, Jesús IEEE (2016)
      We propose a simple and robust method to determine the calibration function of phase-only spatial light modulators (SLMs). The proposed method is based on the codification of binary phase Fresnel lenses (BPFLs) onto an ...

    • openAccess   Diffractive control of 3D multifilamentation in fused silica with micrometric resolution 

      Mendoza-Yero, Omel; Carbonell Leal, Miguel; Doñate-Buendía, Carlos; Mínguez-Vega, Gladys; Lancis, Jesús Optical Society of America (2016)
      We show that a simple diffractive phase element (DPE) can be used to manipulate at will the positions and energy of multiple filaments generated in fused silica under femtosecond pulsed illumination. The method allows ...

    • openAccess   Diffractive digital lensless holographic microscopy with fine spectral tuning 

      Mendoza-Yero, Omel; Tajahuerce, Enrique; Lancis, Jesús; García Sucerquia, Jorge Optical Society of America (2013)
      We experimentally demonstrate an all-diffractive optical setup for digital lensless holographic microscopy with easy wavelength line selection and micrometric resolution. In the proposed system, an ultrashort laser pulse ...

    • openAccess   Diffractive optics for quasi-direct space-to-time pulse shaping 

      Mínguez-Vega, Gladys; Mendoza-Yero, Omel; Lancis, Jesús; Gisbert, Rafael; Andrés, Pedro Optical Society of America (2008)
      The strong chromatic behavior associated with a conventional diffractive lens is fully exploited to propose a novel optical device for pulse shaping in the femtosecond regime. This device consists of two optical elements: ...

    • openAccess   Diffractive optics for spectral control of the supercontinuum generated in sapphire with femtosecond pulses 

      Romero, Carolina; Borrego Varillas, Rocío; Camino, Acner; Mínguez-Vega, Gladys; Mendoza-Yero, Omel; Hernández Toro, Juan; Vázquez de Aldana, Javier R. Optical Society of America (2011)
      We propose the use of kinoform diffractive lenses to focus near infrared femtosecond pulses in sapphire crystals for supercontinuum generation. It is shown that a strongly peaked structure appears in the blue region of the ...

    • openAccess   Dispersion management in two-photon microscopy by using diffractive optical elements 

      Mendoza-Yero, Omel; Pérez Vizcaíno, Jorge; Mínguez-Vega, Gladys; Martinez Cuenca, Raul; Andrés, Pedro; Lancis, Jesús Optical Society of America (2013)
      We demonstrate efficient generation of wide-field fluorescence signals in two-photon microscopy exploiting diffractive optical elements and short pulses by using a dispersion-compensated beam delivery optics module. ...

    • openAccess   Dynamic Control of Interference Effects Between Optical Filaments through Programmable Optical Phase Modulation 

      Borrego Varillas, Rocío; Pérez Vizcaíno, Jorge; Mendoza-Yero, Omel; Vázquez de Aldana, Javier R.; Mínguez-Vega, Gladys; Lancis, Jesús IEEE (2016-06)
      Light beams shaped by programmable megapixel spatial light modulators (SLMs) are key to broadening the applications of photonics. In this paper, we consider the application of a SLM for the generation of two mutually ...

    • openAccess   Dynamic freeform diffractive lens 

      Mendoza-Yero, Omel Optica Publishing Group (2023-03-31)
      In the framework of the scalar theory of diffraction a surface-pixeled convergent lens for arbitrary amplitude and phase modulation along the depth of focus is introduced. This complex diffractive lens is computer-generated ...

    • openAccess   Effects of femtosecond laser and other surface treatments on the bond strength of metallic and ceramic orthodontic brackets to zirconia 

      García-Sanz, Verónica; Paredes-Gallardo, Vanessa; Bellot-Arcís, Carlos; Mendoza-Yero, Omel; Doñate-Buendía, Carlos; Montero, Javier; Albadalejo, Alberto Public Library of Science (2017)
      Femtosecond laser has been proposed as a method for conditioning zirconia surfaces to boost bond strength. However, metallic or ceramic bracket bonding to femtosecond lasertreated zirconia surfaces has not been tested. ...

    • openAccess   Effects of mitigation of pixel crosstalk in the encoding of complex fields using the double-phase method 

      Carbonell Leal, Miguel; Mendoza-Yero, Omel Society of Photo-optical Instrumentation Engineers (2020)
      We report on unwanted effects of pixel cross-talk and its mitigation on the experimental realization of the double-phase method with phase-only spatial light modulators. We experimentally demonstrate that a generalized ...

    • openAccess   Encoding complex fields by using a phase-only optical element 

      Mendoza-Yero, Omel; Mínguez-Vega, Gladys; Lancis, Jesús Optical Society of America (2014)
      We show that the amplitude and phase information from a two-dimensional complex field can be synthesized from a phase-only optical element with micrometric resolution. The principle of the method is based on the combination ...

    • openAccess   Encoding of arbitrary micrometric complex illumination patterns with reduced speckle 

      Carbonell Leal, Miguel; Mínguez-Vega, Gladys; Lancis, Jesús; Mendoza-Yero, Omel Optical Society of America (2019)
      In nonlinear microscopy, phase-only spatial light modulators (SLMs) allow achieving simultaneous two-photon excitation and fluorescence emission from specific regionof-interests (ROIs). However, as iterative Fourier ...

    • openAccess   Experimental Demonstration of the Quasi-Direct Space-to-Time Pulse Shaping Principle 

      Loriot, Vincent; Mendoza-Yero, Omel; Mínguez-Vega, Gladys; Bañares, Luis; De Nalda, Rebeca Institute of Electrical and Electronics Engineers (IEEE) (2012)
      A new strategy of pulse shaping based on the quasi-direct space-to-time (QDST) conversion principle has been recently proposed theoretically [Mínguez-Vega et al., Opt. Express 16, 16993 (2008)]. In this letter, the ...

    • closedAccess   Experimental generation of high-contrast Talbot images with an ultrashort laser pulse 

      Mínguez-Vega, Gladys; Mendoza-Yero, Omel; Fernández Alonso, Mercedes; Andrés, Pedro; Climent, Vicent; Lancis, Jesús Elsevier (2008)
      A femtosecond Ti:sapphire laser oscillator emitting pulses with 800 nm central wavelength, 10.9 fs pulse width, and 75 MHz repetition rate, combined with a dispersion-compensated diffractive system, was used to implement ...

    • openAccess   Fabrication of gold nanoparticles in Therminol VP-1 by laser ablation and fragmentation with fs pulses 

      Torres-Mendieta, Rafael; Mondragon, Rosa; Juliá Bolívar, José Enrique; Mendoza-Yero, Omel; Cordoncillo, Eloisa; Lancis, Jesús; Mínguez-Vega, Gladys IOP Science (2014-10-22)
      This letter reports on a physical method to produce highly pure, size-controlled and well-dispersed spherical gold nanoparticles (NPs) in Therminol VP-1 by pulsed laser ablation in liquids (PLAL) using a 30 fs Ti:Sapphire ...