Generation of Partially Coherent Beams

Cai, Yangjian; Chen, Yuntian; Yu, Jinlong; Liu, Xianlong; Liu, Lin

doi:10.1016/bs.po.2016.11.001

Cited by 120 publications

(53 citation statements)

References 226 publications

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“…Beams with prescribed amplitude, coherence, phase and polarization have been studied in depth. Among them, coherence and phase are two extremely important properties that have been investigated extensively in the past decades [2][3][4][5]. Coherence is regarded as a consequence of the correlation between two or more points in the fluctuating electric field.…”

Section: Introductionmentioning

confidence: 99%

Review on vortex beams with low spatial coherence

Liu

Zeng

Cai

2019

Advances in Physics: X

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Vortex beams with helical phase, carrying phase singularity and orbital angular momentum, have attract great attention in the past decades due to their wide applications in optical communications, optical manipulation, super-resolution imaging and so on. Vortex beams with low spatial coherence, i.e. partially coherent vortex beams, carrying correlation singularity, display some unique properties during propagation, e.g. self-shaping, selfsplitting and self-reconstruction. Partially coherent vortex beams exhibit some advantages over coherent vortex beams in some applications, such as remote sensing, laser radar and free-space optical communications. This review summarizes research progress on partially coherent vortex beams, including theoretical models, propagation properties, generation and topological charge determination.

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Section: Introductionmentioning

confidence: 99%

Review on vortex beams with low spatial coherence

Liu

Zeng

Cai

2019

Advances in Physics: X

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“…Assume that the light source obeys Gaussian statistics with a zero mean. By applying the Gaussian moment theorem [41,42], the FOCF of the source can be expanded in terms of second-order correlation functions as follows:…”

Section: Theory Of Ghost Imaging In Monostatic Turbulence and Bistatimentioning

confidence: 99%

“…In order to evaluate Equation 7, we further assume that the light source is of a Gaussian-Schell model (GSM) beam, the mutual coherence function of which is expressed as [41,42]:…”

Section: Bistatic Turbulence Casementioning

confidence: 99%

Effects of Atmospheric Turbulence on Lensless Ghost Imaging with Partially Coherent Light

et al. 2018

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Ghost imaging with partially coherent light through two kinds of atmospheric turbulences: monostatic turbulence and bistatic turbulence, is studied, both theoretically and experimentally. Based on the optical coherence theory and the extended Huygens–Fresnel integral, the analytical imaging formulae in two kinds of turbulence have been derived with the help of a tensor method. The visibility and quality of the ghost image in two different atmospheric turbulences are discussed in detail. Our results reveal that in bistatic turbulence, the visibility and quality of the image decrease with the increase of the turbulence strength, while in monostatic turbulence, the image quality remains invariant when turbulence strength changes in a certain range, only the visibility decreases with the increase of the strength of turbulence. Furthermore, we carry out experimental demonstration of lensless ghost imaging through monostatic and bistatic turbulences in the laboratory, respectively. The experiment results agree well with the theoretical predictions. Our results solve the controversy about the influence of atmospheric turbulence on ghost imaging.

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“…Recently, partially coherent beams with nonconventional correlation functions (NCFs) have been widely investigated [21,22]. Several types of partially coherent sources with NCFs have been introduced and generated through various coherence manipulation methods [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%

Generation of an Adjustable Optical Cage through Focusing an Apertured Bessel-Gaussian Correlated Schell-Model Beam

et al. 2019

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An adjustable optical cage generated by focusing a partially coherent beam with nonconventional correlation function named the Bessel–Gaussian correlated Schell-model (BGCSM) beam is investigated in detail. With the help of the generalized Huygens–Fresnel integral and complex Gaussian function expansion, the analytical formula of the BGCSM beam passing through an apertured ABCD optical system was derived. Our numerical results show that the generated optical cage can be moderately adjusted by the aperture radius, the spatial coherence width, and the parameter β of the BGCSM beam. Furthermore, the effect of these parameters on the effective beam size and the spectral degree of coherence were also analyzed. The optical cage with adjustable size can be applied for particle trapping and material thermal processing.

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Generation of Partially Coherent Beams

Cited by 120 publications

References 226 publications

Review on vortex beams with low spatial coherence

Review on vortex beams with low spatial coherence

Effects of Atmospheric Turbulence on Lensless Ghost Imaging with Partially Coherent Light

Generation of an Adjustable Optical Cage through Focusing an Apertured Bessel-Gaussian Correlated Schell-Model Beam

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