Results 31 to 40 of about 2,047,243 (297)
Wigner transform approach to dynamic-variable partially coherent laser beam characterization [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2020 1) Background: the modeling, characterization, transformation and propagation of high-power CW laser beams in optical (including fiberoptic) trains and in the atmosphere have become hot topics in laser science and engineering in the past few years ...
J. Jabczyński, P. Gontar, Ł. Gorajek
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Partially Coherent Flat-Topped Beam Generated by an Axicon
Applied Sciences, 2019 The intensity distribution of a partially coherent beam with a nonconventional correlation function, named the multi-Gaussian Schell-model (MGSM) beam, focused by an axicon was investigated in detail.
Minghui Zhang +4 more
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Compact representations of partially coherent undulator radiation suitable for wave propagation
Physical Review Special Topics. Accelerators and Beams, 2015 Undulator radiation is partially coherent in the transverse plane, with the degree of coherence depending on the ratio of the electron beam phase space area (emittance) to the characteristic radiation wavelength λ. On the other hand, numerical codes used
Ryan R. Lindberg, Kwang-Je Kim
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Partially coherent fractional vortex beam
Optics Express, 2018 We introduce a new kind of partially coherent vortex (PCV) beam with fractional topological charge named partially coherent fractional vortex (PCFV) beam and derive the propagation formula for such beam passing through a stigmatic ABCD optical system with the help of the convolution method.
Jun Zeng +4 more
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Partially Coherent, Radially Polarized Beam with Annular Apodization
The Scientific World Journal, 2014 Based on the vectorial Debye theory, the tight focusing properties of partially coherent, radially polarized vortex beams are investigated in detail. In this paper, we propose to use an amplitude modulated filter in combination with a high NA lens to ...
C. Mariyal +3 more
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Nanophotonics, 2023 The intensity distributions and statistics of partially coherent light fields with random fluctuations have proven to be more robust than for coherent light.
Lu Xingyuan +4 more
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Applied Sciences, 2019 The characteristics of partially coherent circular flattened Gaussian vortex beams in turbulent biological tissues are investigated, and the analytical formula for the cross-spectral density of this beam is derived.
Yongzhou Ni +3 more
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Partially Coherent Vortex Beams of Arbitrary Order
Frontiers in Optics 2016, 2016 We derive analytic solutions for an infinite set of partially coherent vortex beams (PCVBs) of any azimuthal order and for any propagation distance. The correlation singularities of the beams and their orbital angular momentum are investigated. This detailed study of PCVBs opens the possibility of using such beams for remote sensing and free-space ...
C S D, Stahl, G, Gbur
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Single-beam phase retrieval with partially coherent light illumination
, 2016 A single-beam phase retrieval method with partially coherent illumination is proposed. By using an obverse and reverse iterative (ORI) algorithm, objects can be reconstructed within less time by recording a sequence of diffraction patterns at different ...
Liang, Yansheng +6 more
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Photonics, 2023 For a partially coherent Laguerre–Gaussian (PCLG) vortex beam, information regarding the topological charge (TC) is concealed in the cross-spectral density (CSD) function phase. Herein, a flexible method for the simultaneous determination of the sign and
Xiaotan Lu +4 more
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