Results 11 to 20 of about 8,132 (273)
Controlling the Spatial Coherence of an Optical Source Using a Spatial Filter [PDF]
Applied Sciences, 2018 This paper presents the theory for controlling the spectral degree of coherence via spatial filtering. Starting with a quasi-homogeneous partially coherent source, the cross-spectral density function of the field at the output of the spatial filter is ...
Milo W. Hyde
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Introduction to the Special Issue on Structured Light Coherence
Photonics, 2021 Statistical optics, and optical coherence in particular, developed into a stand-alone branch of physical optics in the second half of the 20th century and has found a number of ground-breaking applications in astronomical measurements, medical ...
Olga Korotkova, Franco Gori
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Fibre optic fizeau intererometer for optical coherence tomography [PDF]
, 2006 The aim of the project was to develop the Fizeau interferometer configuration to take advantage of the benefits derived from its “downlead insensitivity” to temperature and polarisation fading.
Casaubieilh, P.
core +7 more sources
Speckle statistics of biological tissues in optical coherence tomography
Biomedical Optics Express, 2021 The speckle statistics of optical coherence tomography images of biological tissue have been studied using several historical probability density functions. Here, we propose a new theoretical framework based on power-law functions, where we hypothesize that an underlying power-law distribution governs scattering from tissues.
Gary R. Ge +2 more
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Photonics, 2021 A new family of partially coherent pulsed beams with spatial cosine-Gaussian and temporal Laguerre–Gaussian correlations, named spatial cosine-Gaussian and temporal Laguerre–Gaussian correlated Schell-model (SCTLGSM) pulsed beams, is introduced.
Chaoliang Ding +4 more
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At-wavelength characterization of X-ray wavefronts in Bragg diffraction from crystals
Journal of Synchrotron Radiation, 2023 The advent of next-generation synchrotron radiation sources and X-ray free-electron lasers calls for high-quality Bragg-diffraction crystal optics to preserve the X-ray beam coherence and wavefront.
Xianbo Shi +6 more
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How to Statistically Model Coherent MPI in Optical Communications? [PDF]
Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF), 2018 The Beta distribution is used to model coherent MPI in optical communications and its fitness to describe experimental results is evaluated. It fits quite well to symmetric scenarios, but has some troubles when skewness matters.
Cancela, L. G., Pires, J. O.
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Statistics of Optical Coherence Tomography Data From Human Retina [PDF]
IEEE Transactions on Medical Imaging, 2010 Optical coherence tomography (OCT) has recently become one of the primary methods for noninvasive probing of the human retina. The pseudoimage formed by OCT (the so-called B-scan) varies probabilistically across pixels due to complexities in the measurement technique.
Norberto M. Grzywacz +8 more
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Second-harmonic generation of temporally low-coherence light
APL Photonics, 2020 In this Letter, we study the second-harmonic (SH) generation of temporally low-coherence light using the statistical optics method. By introducing the statistical characteristics of low-coherence light into the nonlinear coupled wave equation, we predict
Xiaohui Zhao +11 more
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FOCUS: fast Monte Carlo approach to coherence of undulator sources
Journal of Synchrotron Radiation, 2023 FOCUS (Fast Monte CarlO approach to Coherence of Undulator Sources) is a new GPU-based simulation code to compute the transverse coherence of undulator radiation from ultra-relativistic electrons.
M. Siano +10 more
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