Partially coherent light beam shaping via complex spatial coherence structure engineering

Chen, Yahong; Wang, Fei; Cai, Yangjian

doi:10.1080/23746149.2021.2009742

Cited by 50 publications

(13 citation statements)

References 222 publications

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“…Additional possibilities for the optical trapping applications are supplied by the special types of PCVBs: cosine-Gaussian correlated Schell-model beam, multi-Gaussian and generalized multi-Gaussian correlated Schell-model beams, Laguerre-Gaussian correlated Schell-model beam, Bessel-Gaussian correlated Schell-model beam, vector Hermite-Gaussian correlated Schell-model beam, etc. [88,89,92,93]. In cases of partially coherent vector beams, modulation of the correlation parameters not only changes the focal intensity distributions but also modifies the polarization distribution in the focal spot [93,94].…”

Section: Correlation Functions and Propagation Properties Of Partiall...mentioning

confidence: 99%

Correlation Optics, Coherence and Optical Singularities: Basic Concepts and Practical Applications

et al. 2022

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The main idea of this review is to trace the interrelations and inter-transitions between the basic concepts and approaches of the correlation optics (including the light coherence) and the singular optics dealing with networks of “exceptional” points of light fields. The principles and examples are described of formation of light fields with required structures (amplitude, phase and polarization distributions, spectral properties as well as the internal energy flows and energy gradients responsible for optical forces) via superpositions of model optical fields of simple standard configurations and under controllable correlation conditions. The theoretical and experimental results, obtained by the authors and other researchers, demonstrate possibilities of the general approach to the complex fields formation with spatial and polarization inhomogeneities. A special topic, considered in more detail, is the interaction of structured optical fields with the media containing suspended micro- and nanoparticles, their inhomogeneous heating by the laser radiation and the accompanying self-diffraction and self-focusing phenomena. Possible light-induced phase transitions and controllable generation of the gas-vapor microbubbles in the medium are discussed. Specific optical singularities in polychromatic light fields are analyzed in connection to the field coherence. Some experimental solutions for revealing the fine structure of optical fields by means of the interference schemes are presented. Practical applications for the micromanipulation techniques, optical diagnostics of remote and random objects, optical treatment and laboratory practice in biology and medicine are described and discussed.

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Section: Correlation Functions and Propagation Properties Of Partiall...mentioning

confidence: 99%

Correlation Optics, Coherence and Optical Singularities: Basic Concepts and Practical Applications

et al. 2022

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“…[1][2][3] In past years, the intensity distributions of fully coherence beams in uniaxial crystal are studied, such as Hermite-cosine-Gaussian beam, 4 Lorentz and Lorentz-Gauss beams, 5 Airy beam, 6 circular Airy vortex beam, 7 Gaussian vortex beam, 8 chirped sinh-Gaussian beam, 9 cosh-Gaussian beam, 10 vortex cosine-hyperbolic-Gaussian beams, 11 and sine beam. 12 The intensity of partially coherent beams (PCBs) is modulated by coherence function, 13 the intensity distributions of various PCBs in uniaxial crystal have been analyzed, such as partially polarized PCB, 14 partially coherent Laguerre-Gaussian beam, 15 twisted Gaussian Schell-model (GSM) beam, 16 Laguerre-GSM beam, 17 and multi-GSM beam. 18 Recently, the dark hollow beam 19 and the anomalous hollow beams (AHBs) 20,21 are introduced.…”

Section: Introductionmentioning

confidence: 99%

Adjustable anomalous hollow vortex beam and its properties

Guo,

Song,

Dong

et al. 2024

Micro & Optical Tech Letters

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A new beam named adjustable anomalous hollow vortex beam (AAHVB) is proposed, and the expressions of an AAHVB in uniaxial crystal are derived. The evolutions of intensity distributions of an AAHVB in free space and uniaxial crystal are investigated. The relationships between intensity distributions with beam parameters, uniaxial crystal, and distance are analyzed in detail. It is found that intensity distributions of an AAHVB in uniaxial crystal can be manipulated by setting source parameters , , , , and .

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“…A Multi-Gaussian correlated Schell-model beam would generate a rectangular intensity profile in the focal plane, and a ring-shaped beam and controllable intensity lattices also can be achieved with the help of the correlation functions [15,26]. In addition, partially coherent beams with prescribed correlation functions can be applied to reduce scintillation in turbulence [28], overcome the classical Rayleigh diffraction limit [29], coherence-based optical encryption [30], robust microscopy imaging [31], robust far-field imaging [32], and optical beam shaping [33].…”

Section: Introductionmentioning

confidence: 99%

Propagation Properties of a Twisted Hermite-Gaussian Correlated Schell-Model Beam in Free Space

Liu

Wang

et al. 2022

Front. Phys.

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We introduce a novel type of twisted partially coherent beams with a nonconventional correlation function, named the twisted Hermite-Gaussian correlated Schell-model (THGCSM) beam. The condition that a twist phase can be imposed on a partially coherent beam is addressed for Schell-model fields endowed with rectangular symmetry. Further, the analytical formula for the THGCSM beam propagating in free space has been derived with the help of the generalized Collins formula. The propagation properties, such as the spectral density and the spectral degree of coherence (SDOC) of the THGCSM beam, also have been studied in detail by some numerical examples. The numerical results show that the twist phase plays a role in resisting beam splitting, caused by the correlation structure, and induces the rotation of the distribution of the SDOC on propagation. Moreover, it is interesting to find that when the beam carries a twist phase, this will endow the beam the ability to maintain its distribution of the SDOC on propagation and enhance the self -reconstruction capability of the SDOC. Our results may provide new insights into nonconventional partially coherent beams with twisted phase and may be useful in some applications, such as optical communications and information recovery.

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Partially coherent light beam shaping via complex spatial coherence structure engineering

Cited by 50 publications

References 222 publications

Correlation Optics, Coherence and Optical Singularities: Basic Concepts and Practical Applications

Correlation Optics, Coherence and Optical Singularities: Basic Concepts and Practical Applications

Adjustable anomalous hollow vortex beam and its properties

Propagation Properties of a Twisted Hermite-Gaussian Correlated Schell-Model Beam in Free Space

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