Results 281 to 290 of about 161,946 (330)

Intensity properties of partially coherent beam waves

Applied Optics, 1980
The extended Huygens-Fresnel principle is used to investigate the lateral coherence and the average on-axis intensity of partially coherent beam waves propagating in the turbulent atmosphere. A factor that determines the shift of the focal point toward the source when a beam wave propagates in turbulence is calculated.
M A, Plonus, C F, Ouyang, S C, Wang
openaire   +2 more sources

Off-axis average transmittance and beam spread of a partially coherent flat-topped beam in a turbulent underwater medium.

Journal of The Optical Society of America A-optics Image Science and Vision, 2019
The effects of oceanic turbulence on the off-axis optical transmittance and beam spread are examined when a partially coherent flat-topped beam wave propagates in an underwater medium.
Aysan Keskin, Y. Baykal
semanticscholar   +1 more source

Partially coherent beam propagation methods

Conference on Lasers and Electro-Optics, 1985
A new field of optics, appropriately called tunabte coherence optics, is finding an increasing number of applications in optical research and industry, for example, speckle reduction, apodization with partially coherent light, linewidth measurements in microdensitometry, optical projection lithography, and laser scanning, However, progress in tunabte ...
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Partially coherent anomalous vortex beam in anisotropic turbulence

Optics Communications, 2023
Jun Ou, Zhihui Yin, Hao Chi, Qiliang Li, Bo Yang, Shuna Yang, Yanrong Zhai   +6 more
semanticscholar   +1 more source

Average characteristics of partially coherent electromagnetic beams

Journal of the Optical Society of America A, 2000
Average characteristics of partially coherent electromagnetic beams are treated with the paraxial approximation. Azimuthally or radially polarized, azimuthally symmetric beams and linearly polarized dipolar beams are used as examples. The change in the mean squared width of the beam from its value at the location of the beam waist is found to be ...
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Thermodynamic Entropy of Partially Coherent Light Beams

Journal of the Physical Society of Japan, 1964
The thermodynamic entropy of partially coherent light beams, as shown by M. von Laue, is given by the sum of the entropy of the principal waves, which represent the given light beams and are statistically independent of each other. The principal waves and their intensities are respectively the eigenfunctions and eigenvalues of the mutual intensity ...
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Partially coherent vortex cosh-Gaussian beam and its paraxial propagation

Optical and quantum electronics, 2021
M. Lazrek, Z. Hricha, A. Belafhal
semanticscholar   +1 more source

Self-focusing of a partially coherent beam with circular coherence.

Journal of The Optical Society of America A-optics Image Science and Vision, 2017
C. Ding, M. Koivurova, J. Turunen, L. Pan   +3 more
semanticscholar   +1 more source

Coherent and partially coherent vortex beams in turbulence

Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion, 2007
The evolution of the scintillation and topological charge of coherent and partially coherent vortex beams in turbulence is analyzed. The possibility of using such beams in optical communications is discussed.
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Spectral properties of partially coherent chirped Airy pulsed beam in oceanic turbulence

, 2021
Bo-yuan Zhu, Shao-jie Bian, Yang Tong, Xin-yue Mou, K. Cheng   +4 more
semanticscholar   +1 more source