Propagation Properties of Generalized Schell-Model Pulse Sources in Dispersive Media

A model of a generalized pulse source, whose complex degree of temporal coherence is described by a function of the nth power difference of two instants, was constructed. As examples, we consider the generalized Gaussian and multi-Gaussian Schell-model pulse sources and study their propagation in di...

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Bibliographic Details
Published inPhotonics Vol. 10; no. 12; p. 1378
Main Authors Liu, Xiayin, Cai, Zhiyu, Wang, Xiaogang, Xu, Bijun
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.12.2023
Subjects
Coherence
complex degree of temporal coherence
Dispersion
Optical trapping
Pellet fusion
phase construction
Propagation
pulse beam
Remote sensing
Spacetime
spectral intensity
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Summary:A model of a generalized pulse source, whose complex degree of temporal coherence is described by a function of the nth power difference of two instants, was constructed. As examples, we consider the generalized Gaussian and multi-Gaussian Schell-model pulse sources and study their propagation in dispersive media. It is indicated that such pulse beams present unique self-focusing, off-axis self-shifting and asymmetric self-splitting characteristics by adjusting the power exponent and phase parameters. Further, we explicitly discuss how the coherence time, summation factor as well as the dispersive coefficient significantly affect the self-focusing and self-shifting behaviors of the pulse beam. The results will benefit some applications involving pulse shaping, optical trapping and remote sensing.
ISSN:2304-6732
2304-6732
DOI:10.3390/photonics10121378