Results 11 to 20 of about 107,392 (290)

Digital in-line holography with a spatially partially coherent beam [PDF]

Journal of the European Optical Society-Rapid Publications, 2011
We propose in this paper an analytical solution to the problem of scalar diffraction of a partially coherent beam by an opaque disk. This analytical solution is applied in digital in-line holography of particles. We demonstrate that the reconstruction by
Coëtmellec S., Remacha C., Brunel M., Lebrun D., Janssen A. J. E. M.   +4 more
doaj   +1 more source

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

Frontiers in Physics, 2022
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.
Leixin Liu, Haiyun Wang, Lin Liu, Yiming Dong, Fei Wang, Bernhard J. Hoenders, Yahong Chen, Yangjian Cai, Yangjian Cai, Yangjian Cai, Xiaofeng Peng, Xiaofeng Peng   +11 more
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Beam Properties of a Partially Coherent Beam Propagating Horizontally in Atmospheric Turbulence

Photonics, 2023
This study explored the impact of atmospheric turbulence on partially coherent light propagation. Atmospheric turbulence causes random modulation of the intensity and phase of light, resulting in a speckle pattern in the far field.
Zengyan Wu, Zhejun Feng, Shubing Ye, Baoming Song, Runxi Wei, Chaoran Yu   +5 more
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Generation and Propagation of Partially Coherent Power-Exponent-Phase Vortex Beam

Frontiers in Physics, 2021
We report on a partially coherent power-exponent-phase vortex beam (PC-PEPV), whose spatial coherence is controllable and the initial phase exhibits a periodic power exponential change.
Hao Zhang, Xingyuan Lu, Zhuoyi Wang, A. P. Konijnenberg, Haiyun Wang, Chengliang Zhao, Yangjian Cai, Yangjian Cai, Yangjian Cai   +8 more
doaj   +1 more source

Partially Coherent Off-Axis Double Vortex Beam and Its Properties in Oceanic Turbulence

Photonics, 2023
A partially coherent off-axis double vortex beam (PCOADVB) composed of two off-axis vortices is theoretically presented. The analytical equations of a PCOADVB in oceanic turbulence are presented, and the intensity profiles and the number of coherence ...
Luli Chen, Guiqiu Wang, Yan Yin, Haiyang Zhong, Dajun Liu, Yaochuan Wang   +5 more
doaj   +1 more source

Enhancing the Self-Healing Ability of a Partially Coherent Airy Beam via Fourier Processing: Numerical Investigation

Photonics, 2023
Almost all of the beams under propagation are believed to suffer severe distortion when the source coherence deteriorates, due to the optical diffraction.
Yuefeng Zhao, Yinghe Wang, Qian Chen, Pujuan Ma, Yangjian Cai, Chunhao Liang   +5 more
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Radial phased-locked Laguerre-Gaussian correlated schell-model beam array

Heliyon, 2022
A new beam array called radial phased-locked Laguerre-Gaussian correlated Schell-model (LGCSM) beam array is presented, the beamlet of this beam array is partially coherent beam with Laguerre Gaussian-Schell model correlation.
Yaotian Yan, Guiqiu Wang, Yan Yin, Hongming Yin, Yaochuan Wang, Dajun Liu   +5 more
doaj   +1 more source

Photon Distribution Function for Long-Distance Propagation of Partially Coherent Beams through the Turbulent Atmosphere [PDF]

, 2006
The photon density operator function is used to calculate light beam propagation through turbulent atmosphere. A kinetic equation for the photon distribution function is derived and solved using the method of characteristics.
A. A. Chumak, G. P. Berman, I. G. Yakushkin, I. G. Yakushkin, J. C. Ricklin, J. Strohbehn, L. C. Andrews, L. C. Andrews, L. D. Landau, L. Mandel, P. M. Tomchuk, V. A. Banakh, V. A. Banakh, V. I. Tatarskii   +13 more
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Partially coherent stable and spiral beams [PDF]

Journal of the Optical Society of America A, 2013
Stable and spiral coherent beams, which do not change the form of their intensity distribution apart from possible scaling and rotation during propagation and therefore possess self-healing properties, are widely applied in science and technology. On the other hand, it has been found that partially coherent light often provides better output than ...
Alieva Krasheninnikova, Tatiana, Rodrigo Martín-Romo, José Augusto, Cámara, Alberto, Abramochkin, Eugeny   +3 more
openaire   +4 more sources

Propagation of Correlation Singularities of a Partially Coherent Laguerre–Gaussian Electromagnetic Beam in a Uniaxial Crystal

IEEE Photonics Journal, 2017
The correlation singularities of a partially coherent Laguerre–Gaussian (LG) electromagnetic beam in a uniaxial crystal is shown to possess interesting evolution behavior. The analytical formula for the cross-spectral density matrix of a partially
Yongtao Zhang, Liuzhan Pan, Yangjian Cai
doaj   +1 more source