Listar por autoría "10cd6302-43ca-4b9d-88a9-1321c94736f2"
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20 GHz arbitrary radio-frequency waveform generator based on incoherent pulse shaping
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 ... -
Active wavefront compensation of broadband femtosecond laser pulses through pupil segmentation
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 ...
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Adaptive single-pixel imaging through turbid media
Optica Publishing Group (2022-07-11)We present a system for imaging objects through non-homogeneous scattering media that works in an adaptive way by combining diffuse optical imaging (DOI) and single-pixel imaging (SPI) techniques. The experimental results ... -
All-fiber incoherent frequency-to-time mapping method for microwave signal generation with baseband transmission and multicasting support
Elsevier (2008)We present a proof-of-principle experiment for achieving simultaneous distribution of baseband radio-frequency data and up-conversion with broadcasting support over a passive optical network. The technique is based on an ...
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Centroid propagation through optical systems with ABCD kernels and nonuniform or finite apertures
Optical Society of America (2010-07)If the propagation of a light field can be satisfactorily described by a diffraction integral with an ABCD kernel, the propagation of its irradiance centroid is completely determined by the corresponding ABCD ray-transfer ...
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Characterization of Tin/Ethylene Glycol Solar Nanofluids Synthesized by Femtosecond Laser Radiation
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 ...
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Closed-loop adaptive optics with a single element for wavefront sensing and correction
Optical Society of America (2011)We propose a closed-loop adaptive optical arrangement based on a single spatial light modulator that simultaneously works as a correction unit and as the key element of a wavefront sensor. This is possible by using a liquid ...
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Coherence revivals in two-photon frequency combs
American Physical Society (2011-09-16)We describe and theoretically analyze the self-imaging Talbot effect of entangled photon pairs in the time domain. Rich phenomena are observed in coherence propagation along dispersive media of mode-locked two- photon ...
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Compressive holography with a single-pixel detector
Optical Society of America (2013)This Letter develops a framework for digital holography at optical wavelengths by merging phase-shifting interferometry with single-pixel optical imaging based on compressive sensing. The field diffracted by an input object ...
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Compressive holography with phase-structured illumination
IEEE (2015-06)We describe several approaches to perform digital holography with single-pixel detection by using phase-structured illumination and compressive sensing. Single-pixel imaging works by sampling the scene ...
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Compressive imaging in scattering media
Optical Society of America (2015)One challenge that has long held the attention of scientists is that of clearly seeing objects hidden by turbid media, as smoke, fog or biological tissue, which has major implications in fields such as remote sensing or ...
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Computational imaging with a balanced detector
Nature Publishing (2016-06-29)Single-pixel cameras allow to obtain images in a wide range of challenging scenarios, including broad regions of the electromagnetic spectrum and through scattering media. However, there still exist several drawbacks that ...
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Controlled Multibeam Supercontinuum Generation With a Spatial Light Modulator
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 ...
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Diffraction-Based Phase Calibration of Spatial Light Modulators With Binary Phase Fresnel Lenses
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 ...
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Diffractive control of 3D multifilamentation in fused silica with micrometric resolution
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 ...
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Diffractive digital lensless holographic microscopy with fine spectral tuning
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 ...
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Diffractive optics for quasi-direct space-to-time pulse shaping
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: ...
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Dispersion management in two-photon microscopy by using diffractive optical elements
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. ...
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Dual-mode optical microscope based on single-pixel imaging
Elsevier (2016-03)We demonstrate an inverted microscope that can image specimens in both reflection and transmission modes simultaneously with a single light source. The microscope utilizes a digital micromirror device (DMD) for patterned ...
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Dynamic Control of Interference Effects Between Optical Filaments through Programmable Optical Phase Modulation
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 ...
