Journal ArticleDOI
Shaping the intensity and degree of coherence of a partially coherent beam by a 4f optical system with an amplitude filter
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TLDR
In this article, a Gaussian Schell-model (GSM) beam with an amplitude filter in the frequency plane is used to shape the intensity and degree of coherence of a GSM beam.Abstract:
It is known that a 4f optical system with an amplitude filter can be adopted to shape the intensity of a coherent Gaussian beam. In this paper, we investigate the propagation of a typical kind of partially coherent beam called a Gaussian Schell-model (GSM) beam through a 4f optical system with an amplitude filter in the frequency plane. It is demonstrated both numerically and experimentally that the 4f optical system with an amplitude filter can be used to shape the intensity and degree of coherence of a GSM beam simultaneously. The shaped beam displays interesting properties and forms controllable far-field intensity lattices, which may be useful for particle trapping and information transfer.read more
Citations
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Journal ArticleDOI
Stochastic complex transmittance screens for synthesizing general partially coherent sources.
TL;DR: A method to synthesize any partially coherent source (PCS) with a genuine cross-spectral density (CSD) function using complex transmittance screens using stochastic complex screen realizations is developed.
Journal ArticleDOI
Numerical Approach for Studying the Evolution of the Degrees of Coherence of Partially Coherent Beams Propagation through an ABCD Optical System
Pujuan Ma,Barbora Kacerovská,R. Khosravi,Chunhao Liang,Jun Zeng,Xiaofeng Peng,Chenkun Mi,Yashar E. Monfared,Yuping Zhang,Fei Wang,Yangjian Cai +10 more
TL;DR: In this paper, a numerical approach is proposed to simulate the degree of coherence (DOC) of a partially coherent beam (PCB) with a Schell-model correlator in any transverse plane during propagation.
Journal ArticleDOI
Standard and elegant higher-order Laguerre-Gaussian correlated Schell-model beams
Chunhao Liang,Chunhao Liang,Chunhao Liang,R. Khosravi,Xiaoxiong Liang,Barbora Kacerovská,Barbora Kacerovská,Yashar E. Monfared +7 more
Journal ArticleDOI
Controlling the Spatial Coherence of an Optical Source Using a Spatial Filter
TL;DR: In this article, the spectral degree of coherence via spatial filtering is controlled by applying Fourier and statistical optics theory, which is verified with Monte Carlo wave-optics simulations of spatial coherence control and beam shaping for free-space optical communications and directed energy applications.
Journal ArticleDOI
Generation of novel partially coherent truncated Airy beams via Fourier phase processing
TL;DR: NPCTABs are more stable during their propagation in free space and can maintain their Airy-like profile for an extended propagation distance, and the interesting and tunable characteristics of these novel beams may find applications in particle trapping, phase retrieval, and optical imaging.
References
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Journal ArticleDOI
Shape-invariant difference between two Gaussian Schell-model beams.
TL;DR: The modal analysis of this class of cross-spectral densities is exploited to devise a synthesis scheme for this type of beam, and their intensity and coherence properties are investigated.
Journal ArticleDOI
Effect of the correlation function on the focal shift of a partially coherent beam.
TL;DR: This paper investigates the focusing properties of a partially coherent beam with nonconventional correlation function, named a generalized multi-Gaussian correlated Schell-model beam, through deriving the analytical expression for its effective beam width through a novel way for controlling the focal shift.