Method for generating space-time coherent vortex and space-time dislocation

Method for generating space-time coherent vortex and space-time dislocation

The invention relates to the technical field of optics, in particular to a method for generating space-time coherent vortex and space-time dislocation, which comprises the following steps: firstly, representing a cross-spectral density function of a partially coherent pulse beam (PCPB) as incoherent...

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Hauptverfasser: ZHAO CUNHUA, QI XIEXING, WANG JIA, WANG JUNQIANG, DING CHAOLIANG, ZHAO ZHIGUO, JING CHENRUI, WANG HAIXIA, PAN LIUZHAN
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Sprache:chi ; eng
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OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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creator ZHAO CUNHUA
QI XIEXING
WANG JIA
WANG JUNQIANG
DING CHAOLIANG
ZHAO ZHIGUO
JING CHENRUI
WANG HAIXIA
PAN LIUZHAN
description The invention relates to the technical field of optics, in particular to a method for generating space-time coherent vortex and space-time dislocation, which comprises the following steps: firstly, representing a cross-spectral density function of a partially coherent pulse beam (PCPB) as incoherent superposition of a plurality of spatial frequency domain eigenfunctions; then, Fourier transform is utilized to obtain a mutual coherence function expression of the PCPB, and the expression is expressed as incoherent superposition of a plurality of space-time domain eigenfunctions; then loading the space-time vortex phase into an intrinsic function of a time-space domain to obtain an analytical expression of a mutual coherence function with the space-time vortex phase PCPB; then enabling a real part and an imaginary part of the PCPB mutual coherence function with the space-time vortex phase to be respectively equal to zero; finally, the position where the space-time coherent vortex and the space-time dislocation a
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OPTICS
PHYSICS
title Method for generating space-time coherent vortex and space-time dislocation
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