Results 21 to 30 of about 270,007 (277)
Besinc Pseudo-Schell Model Sources with Circular Coherence
Applied Sciences, 2019 Partially coherent sources with non-conventional coherence properties present unusual behaviors during propagation, which have potential application in fields like optical trapping and microscopy.
Rosario Martínez-Herrero +4 more
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Vortex preserving statistical optical beams
Optics Express, 2020 We establish a general form of the cross-spectral density of statistical sources that generate vortex preserving partially coherent beams on propagation through any linear ABCD optical system. We illustrate our results by introducing a class of partially coherent vortex beams with a closed form cross-spectral density at the source and demonstrating the
Zhiheng Xu +5 more
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Out-of-horizon correlations following a quench in a relativistic quantum field theory
Journal of High Energy Physics, 2020 One of the manifestations of relativistic invariance in non-equilibrium quantum field theory is the “horizon effect” a.k.a. light-cone spreading of correlations: starting from an initially short-range correlated state, measurements of two observers at ...
I. Kukuljan, S. Sotiriadis, G. Takács
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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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Statistics of Microlensing Optical Depth
The Astrophysical Journal, 1995 We show that the statistical error, $ _ $, in estimating the optical depth, $ $, due to microlensing is substantially higher than the naive Poisson estimate: $ _ = \sqrt{ / N} $, where $N$ is the number of detections and $1.65 \leq \lsim 3$. We construct a ``microlensing map'' using an observationally well-constrained barred bulge model and ...
Han, Cheongho, Gould, Andrew
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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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The role of clinical diagnosis criteria on the frequency of accommodative insufficiency [PDF]
International Journal of Ophthalmology, 2019 AIM: To estimate and compare the frequency of accommodative insufficiency (AI) within the same clinical population sample depending on the type of clinical criteria used for diagnosis.
María García-Montero +5 more
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Journal of Taibah University for Science, 2022 The objective of this work is to measure the influence of the Mth coherent state on the optics model of two atoms interacting with two-mode quantized field. Also, two atoms interacting together is included in this optics model.
Abdallah A. Nahla, Anas A. Othman
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Speckle noise and dynamic range in coronagraphic images [PDF]
, 2007 This paper is concerned with the theoretical properties of high contrast coronagraphic images in the context of exoplanet searches. We derive and analyze the statistical properties of the residual starlight in coronagraphic images, and describe the ...
Andre Ferrari +15 more
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Quantum statistical theory of optical phenomena [PDF]
Proceedings of the National Academy of Sciences, 1977 The purpose of this paper is to develop a density matrix formulation for optical phenomena that can be applied to both steady and transient states and to both resonance and off-resonance regions. To demonstrate the application, this theory has been applied to the steady-state one-photon and two-photon processes.
S H, Lin, H, Eyring
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