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

Mostrando ítems 21-40 de 44

    • openAccess   Fabrication of high stable gold nanofluid by pulsed laser ablation in liquids 

      Torres-Mendieta, Rafael; Mondragon, Rosa; Juliá Bolívar, José Enrique; Mendoza-Yero, Omel; Lancis, Jesús; Mínguez-Vega, Gladys Copyright © 2015 VBRI Press (2015-11)
      Laser ablation in liquids by femtosecond radiation has been used to generate gold nanoparticles in a heat transfer fluid to produce a high stable thermal nanofluid as a heat transfer intensification technique. In oil based ...

    • openAccess   Femtosecond digital lensless holographic microscopy to image biological samples 

      Mendoza-Yero, Omel; Calabuig Barroso, Alejandro; Tajahuerce, Enrique; Lancis, Jesús; Andrés, Pedro; García Sucerquia, Jorge Optical Society of America (2013)
      The use of femtosecond laser radiation in digital lensless holographic microscopy (DLHM) to image biological samples is presented. A mode-locked Ti:Sa laser that emits ultrashort pulses of 12 fs intensity FWHM, with 800 ...

    • openAccess   Femtosecond filamentation in sapphire with diffractive lenses 

      Borrego Varillas, Rocío; Romero, Carolina; Mendoza-Yero, Omel; Mínguez-Vega, Gladys; Gallardo, I.; Vázquez de Aldana, Javier R. Optical Society of America (2013)
      In this paper, we demonstrate novel properties in the phenomenology of supercontinuum generation in sapphire with diffractive lenses and provide a complete spatial, spectral, and temporal characterization of the so-generated ...

    • closedAccess   Femtosecond laser micromachining with extended depth of focus by using diffractive lenses 

      Torres Peiró, Salvador; González Ausejo, Jennifer; Mendoza-Yero, Omel; Mínguez-Vega, Gladys; Lancis, Jesús Elsevier (2014-06-01)
      We show that a simple diffraction focusing element can alleviate mechanical tolerances in ultrafast laser microprocessing. In particular, we experimentally demonstrate that, in comparison with a conventional refractive ...

    • openAccess   Fractal generalized zone plates 

      Mendoza-Yero, Omel; Fernández Alonso, Mercedes; Mínguez-Vega, Gladys; Lancis, Jesús; Climent, Vicent; Monsoriu, Juan A. Optical Society of America (2009)
      The construction of fractal generalized zone plates (FraGZPs) from a set of periodic diffractive optical elements with circular symmetry is proposed. This allows us to increase the number of foci of a conventional fractal ...

    • openAccess   Free-Motion Beam Propagation Factor Measurement by Means of a Liquid Crystal Spatial Light Modulator 

      Pérez Vizcaíno, Jorge; Mendoza-Yero, Omel; Martinez Cuenca, Raul; Martínez-León, Lluís; Tajahuerce, Enrique; Lancis, Jesús Institute of Electrical and Electronics Engineers (2012)
      In contrast to the mechanical scanning procedure described in the standard ISO/DIS 11146, the use of electronically tunable focal length lenses has proved its capability for the measurement of the laser beam propagation ...

    • openAccess   Frequency resolved wavefront retrieval and dynamics of diffractive focused ultrashort pulses 

      Alonso, Benjamín; Borrego Varillas, Rocío; Mendoza-Yero, Omel; Sola, Íñigo Juan; San Román, Julio; Mínguez-Vega, Gladys; Roso, Luis Optical Society of America (2012-08)
      In this work we demonstrate the ability of the spatiotemporal characterization technique STARFISH to retrieve the wavelength dependent wavefront of focused ultrashort laser pulses. The high resolution achievable with this ...

    • openAccess   Fresnel phase retrieval method using an annular lens array on an SLM 

      Loriot, Vincent; Mendoza-Yero, Omel; Pérez Vizcaíno, Jorge; Mínguez-Vega, Gladys; De Nalda, R.; Bañares, Luis; Lancis, Jesús Springer (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 laser beam. The ...

    • closedAccess   Generation of multifocal irradiance patterns by using complex Fresnel holograms 

      Mendoza-Yero, Omel; Carbonell Leal, Miguel; Mínguez-Vega, Gladys; Lancis, Jesús Optical Society of America (2018)
      We experimentally demonstrate Fresnel holograms able to produce multifocal irradiance patterns with micrometric spatial resolution. These holograms are assessed from the coherent sum of multiple Fresnel lenses. The utilized ...

    • openAccess   High-visibility interference fringes with femtosecond laser radiation 

      Martinez Cuenca, Raul; Martínez-León, Lluís; Lancis, Jesús; Mínguez-Vega, Gladys; Mendoza-Yero, Omel; Tajahuerce, Enrique; Clemente Pesudo, Pedro Javier; Andrés, Pedro Optical Society of America (2009)
      We propose and experimentally demonstrate an interferometer for femtosecond pulses with spectral bandwidth about 100 nm. The scheme is based on a Michelson interferometer with a dispersion compensating module. A diffractive ...

    • openAccess   Multibeam second-harmonic generation by spatiotemporal shaping of femtosecond pulses 

      Martinez Cuenca, Raul; Mendoza-Yero, Omel; Alonso, Benjamín; Sola, Íñigo Juan; Mínguez-Vega, Gladys; Lancis, Jesús Optical Society of America (2012)

    • openAccess   On-axis non-linear effects with programmable Dammann lenses under femtosecond illumination 

      Pérez Vizcaíno, Jorge; Mendoza-Yero, Omel; Borrego Varillas, Rocío; Mínguez-Vega, Gladys; Vázquez de Aldana, Javier R.; Lancis, Jesús Optical Society of America (2013)
      We demonstrate the utilization of Dammann lenses codified onto a spatial light modulator (SLM) for triggering non-linear effects. With continuous wave illumination Dammann lenses are binary phase optical elements that ...

    • closedAccess   Optical Filter Based on a Spatially Patterned Kinoform Diffractive Lens 

      Mínguez-Vega, Gladys; Mendoza-Yero, Omel; Tajahuerce, Enrique; Lancis, Jesús; Andrés, Pedro Institute of Electrical and Electronics Engineers (IEEE) (2009)
      We demonstrate a compact all-diffractive setup for spectral synthesis. The system is composed of a circularly symmetric mask attached to a kinoform diffractive lens. Following diffraction-based analysis, a Fourier transform ...

    • openAccess   Optical filters with fractal transmission spectra based on diffractive optics 

      Mendoza-Yero, Omel; Mínguez-Vega, Gladys; Fernández Alonso, Mercedes; Lancis, Jesús; Tajahuerce, Enrique; Climent, Vicent; Monsoriu, Juan A. Optical Society of America (2009)
      The duality between the axial irradiance distribution originated by any circularly symmetric diffracting aperture under monochromatic illumination and its diffracted spectral intensity at a fixed on-axis point under broadband ...

    • openAccess   Parallel laser micromachining based on diffractive optical elements with dispersion compensated femtosecond pulses 

      Torres Peiró, Salvador; González Ausejo, Jennifer; Mendoza-Yero, Omel; Mínguez-Vega, Gladys; Andrés, Pedro; Lancis, Jesús Optical Society of America (2013)
      We experimentally demonstrate multi-beam high spatial resolution laser micromachining with femtosecond pulses. The effects of chromatic aberrations as well as pulse stretching on the material processed due to diffraction ...

    • openAccess   Programmable quasi-direct space-to-time pulse shaper with active wavefront correction 

      Mendoza-Yero, Omel; Loriot, Vincent; Pérez Vizcaíno, Jorge; Mínguez-Vega, Gladys; Lancis, Jesús; De Nalda, Rebeca; Bañares, Luis Optical Society of America (2012)
      We experimentally demonstrate an extremely compact and programmable pulse shaper composed of a single phase mask encoded into a spatial light modulator. Its principle of operation is similar to the previously theoretically ...

    • openAccess   Second-harmonic illumination to enhance multispectral digital lensless holographic microscopy 

      Mendoza-Yero, Omel; Carbonell Leal, Miguel; Lancis, Jesús; García Sucerquia, Jorge Optical Society of America (2016-03)
      Multispectral digital lensless holographic microscopy (MDLHM) operating with second-harmonic illumination is shown. Added to the improvement of the spatial resolution of the previously reported MDLHM operating with ...

    • closedAccess   Self-similar behavior in semiconductor superlattices 

      Castro-Palacio, Juan Carlos; Villatoro, Francisco R.; Mendoza-Yero, Omel; Velázquez Abad, Luisberis; Monsoriu, Juan A. World Scientific Publishing Company (2012)
      The scattering of particles in fractal superlattices has been analyzed by means of the transfer matrix method. The fractal superlattice consists of alternating layers of semiconductor materials following the rule of a ...

    • openAccess   Self-similar focusing with generalized devil’s lenses 

      Casanova, Cristina; Burlan, Walter D.; Remón, Laura; Calatayud, Arnau; Monsoriu, Juan A.; Mendoza-Yero, Omel Optical Society of America (2011)
      We introduce the generalized devil’s lenses (GDLs) as a new family of diffractive kinoform lenses whose structure is based on the generalized Cantor set. The focusing properties of different members of this family are ...

    • closedAccess   Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator 

      Carbonell Leal, Miguel; Mendoza-Yero, Omel Journal of Visualized Experiments (2019-01-29)
      The aim of this article is to visually demonstrate the utilization of an interferometric method for encoding complex fields associated with coherent laser radiation. The method is based on the coherent sum of two uniform ...