Cosine-Gaussian Schell-model sources

Mei, Zhangrong; Korotkova, Olga

doi:10.1364/ol.38.002578

Cited by 159 publications

(65 citation statements)

References 15 publications

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“…Partially coherent fields can cause several different kinds of modifications to the spatial intensity distribution, such as self-focusing and far-field flat topping, among many others [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. However, they are not the only extraordinary phenomena caused by partial coherence; some correlation functions can decrease scintillation in atmospheric turbulence [17], while others increase the resolving power of imaging systems [18,19].…”

Section: Introductionmentioning

confidence: 99%

Temporal self-splitting of optical pulses

et al. 2018

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We present mathematical models for temporally and spectrally partially coherent pulse trains with LaguerreGaussian and Hermite-Gaussian Schell-model statistics as extensions of the standard Gaussian Schell model for pulse trains. We derive propagation formulas of both classes of pulsed fields in linearly dispersive media and in temporal optical systems. It is found that, in general, both types of fields exhibit time-domain self-splitting upon propagation. The Laguerre-Gaussian model leads to multiply peaked pulses, while the Hermite-Gaussian model leads to doubly peaked pulses, in the temporal far field (in dispersive media) or at the Fourier plane of a temporal system. In both model fields the character of the self-splitting phenomenon depends both on the degree of temporal and spectral coherence and on the power spectrum of the field.

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Section: Introductionmentioning

confidence: 99%

Temporal self-splitting of optical pulses

et al. 2018

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“…2,3 Owing to these advantages and other applications, the generation and propagation of partially coherent beams have attracted much attention. For instance, partially coherent beams with different types of correlation, including Gaussian Schell-model arrays, 4 multi-Gaussian correlated Schell-model beams, 5 and cosine-Gaussian Schell-model beams 6,7 have been produced. Further to this, the propagation of partially coherent beams in atmospheric turbulence, 8,9 oceanic turbulence, [10][11][12] and isotropic random media 13 has also been investigated.…”

Section: Introductionmentioning

confidence: 99%

Generation of partially coherent beams with controllable time-dependent coherence

Chen

Chávez-Cerda

2017

Opt. Eng.

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Abstract. A straight effective method to produce partially coherent beams with controllable time-dependent coherence is demonstrated. We theoretically deduce that a time-dependent partially coherent beam can be generated by imposing dynamic random phase on a coherent laser beam. The degree of coherence of the beam is determined by an amplitude control parameter of the dynamic random phase. We experimentally corroborate that after a completely coherent laser beam reflected from a spatial light modulator, loaded with a particular dynamic random phase, this beam is transformed into a partially coherent beam with time-dependent coherence. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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“…However, in most studies, the correlation functions of the partially coherent beams are restricted on Gaussian function because it is difficult to judge whether other correlation functions are physical realizable or not. Since Gori and co-workers derived the sufficient condition for devising genuine correlation functions for partially coherent scalar and vector beams [3,4], various partially coherent beams with different kinds of correlation functions have been introduced theoretically [5][6][7][8]. Meanwhile, several methods were proposed to produce such kinds of partially coherent beams [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%