Listar FCA_Articles por autoría "10cd6302-43ca-4b9d-88a9-1321c94736f2"

Mostrando ítems 1-20 de 25

    • openAccess   20 GHz arbitrary radio-frequency waveform generator based on incoherent pulse shaping 

      Torres Company, Víctor; Andrés, Pedro; Lancis, Jesús; Chen, Lawrence R. Optical Society of America (2008)
      We demonstrate a new approach of photonically assisted radiofrequency (RF) waveform generation using a spectrally incoherent light source. The system is based on the so-called generalized frequency-to-time mapping ...

    • 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   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   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 ...

    • 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   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   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 ...

    • openAccess   Ghost interference with classical partially coherent light pulses 

      Lajunen, Hanna; Lancis, Jesús; Friberg, Ari T.; Torres Company, Víctor American Physical Society (2008)
      The two-photon temporal coincidence detection amplitude obeys a pair of equations identical to those of classical partially coherent plane-wave pulses propagating in linearly dispersive media. These equations are also ...

    • openAccess   High sampling rate single-pixel digital holography system employing a DMD and phase-encoded patterns 

      González, Humberto; Martínez-León, Lluís; Soldevila, Fernando; Araiza Esquivel, María A.; Lancis, Jesús; Tajahuerce, Enrique Optical Society of America (2018)
      A single-pixel digital holography system with phase-encoded illumination using a digital micromirror device (DMD) as a spatial light modulator (SLM) is presented. The enhanced switching rate of DMDs, far exceeding the ...

    • openAccess   In situ decoration of graphene sheets with gold nanoparticles synthetized by pulsed laser ablation in liquids 

      Torres-Mendieta, Rafael; Ventura Espinosa, David; Sabater López, Sara; Lancis, Jesús; Mínguez-Vega, Gladys; Mata Martínez, Jose A (2016-07)
      The demand for nanocomposites of graphene and carbonaceous materials decorated with metallic nanoparticles is increasing on account of their applications in science and technology. Traditionally, the production of ...

    • openAccess   Lossless equalization of frequency combs 

      Torres Company, Víctor; Lancis, Jesús; Andrés, Pedro Optical Society of America (2008)
      Frequency combs obtained by sinusoidal phase modulation of narrow-band continuous-wave lasers are widely used in the field of optical communications. However, the resulting spectral envelope of the comb is not at. ...

    • 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   Overcoming the barrier of nanoparticle production by femtosecond laser ablation in liquids using simultaneous spatial and temporal focusing 

      Doñate-Buendía, Carlos; Fernández-Alonso, Mercedes; Lancis, Jesús; Mínguez-Vega, Gladys Optical Society of America (2019)
      There exists an increasing demand of industrial-scale production of high-purity ligand-free nanoparticles due to the continuous development of biomedicine, catalysis, and energy applications. In this contribution, a ...

    • openAccess   Phase calibration of spatial light modulators by means of Fresnel images 

      Martínez-León, Lluís; Jaroszewicz, Z.; Kołodziejczyk, A.; Durán, Vicente; Tajahuerce, Enrique; Lancis, Jesús Institute of Physics (2009)
      Reliable application of spatial light modulators (SLMs) as programmable diffractive optical elements requires a thorough calibration. In this paper, we propose a method for calibrating SLMs based on the evaluation of ...

    • openAccess   Poincaré-sphere representation of phase-mostly twisted nematic liquid crystal spatial light modulators 

      Durán, Vicente; Clemente Pesudo, Pedro Javier; Martínez-León, Lluís; Climent, Vicent; Lancis, Jesús Institute of Physics (2009)
      We establish necessary conditions in order to design a phase-only wave front modulation system from a liquid crystal display. These conditions determine the dependence of the polarization state of the light emerging from ...

    • openAccess   Reconfigurable RF-Waveform Generation Based on Incoherent-Filter Design 

      Andrés, Pedro; Lancis, Jesús; Torres Company, Víctor; Chen, Lawrence R. Institute of Electrical and Electronics Engineers (2008)
      Radio-frequency (RF) waveform generators are key devices for a variety of applications, including radar, ultra-wideband communications, and electronic test measurements. Following advances in broadband coherent pulsed ...

    • openAccess   Resolution-enhanced optical coherence tomography based on classical intensity interferometry 

      Lajunen, Hanna; Torres Company, Víctor; Lancis, Jesús; Friberg, Ari T. Optical Society of America (2009)
      We propose a fourth-order interference scheme for optical coherence tomography operating with broadband incoherent (or quasi-incoherent) light. It is shown that using this proposal, an axial resolution improvement by a ...

    • openAccess   Single-pixel imaging through non-homogeneous turbid media with adaptive illumination 

      Ipus, Erick; Lenz, Armin; Lancis, Jesús; Paniagua Diaz, Alba Maria; Artal, Pablo; Tajahuerce, Enrique Optica Publishing Group (2024-03-29)
      The presence of scattering media limits the quality of images obtained by optical systems. Single-pixel imaging techniques based on structured illumination are highly tolerant to the presence of scattering between the ...