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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Book ChapterDOI
Generation of Partially Coherent Beams
TL;DR: Partially coherent beams with a prescribed phase, state of polarization, and degree of coherence display many extraordinary propagation properties and are preferred in many applications, such as particle trapping, free-space optical communications, remote sensing, optical imaging, material thermal processing, image transformation, and optical encryption as discussed by the authors.
Journal ArticleDOI
Genuine cross-spectral densities and pseudo-modal expansions.
TL;DR: It is shown that any genuine CSD can be expanded in terms of the so-called pseudo-modes of the source, understood as coherent contributions, not orthogonal to one another, that, superposed in an uncorrelated way, give rise to the CSD.
Journal ArticleDOI
Nonlinear optical measurements using a 4 f coherent imaging system with phase objects
TL;DR: In this paper, a one-laser-shot measurement technique using a phase object at the entry of a 4f coherent imaging system to characterize the value of the nonlinear refractive index of materials placed in the Fourier plane of the setup is presented.
Journal ArticleDOI
The directionality of gaussian Schell-model beams☆
John T. Foley,M.S. Zubairy +1 more
TL;DR: In this article, the directionality of beams produced by gaussian Schell-model planar sources is investigated by calculating the root-mean-square beam radius as a function of the distance propagated.
Journal ArticleDOI
Radiation force of scalar and electromagnetic twisted Gaussian Schell-model beams
TL;DR: It is found that the twist phase affects the radiation force and by raising the absolute value of the twist factor it is possible to increase both transverse and longitudinal trapping ranges at the real focus where the maximum on-axis intensity is located.