scholarly journals Experimental observation of invariance of spectral degree of coherence with change in bandwidth of light

2009 ◽  
Vol 35 (1) ◽  
pp. 70 ◽  
Author(s):  
Bhaskar Kanseri ◽  
Hem Chandra Kandpal
Keyword(s):  
Experimental Observation ◽  
Degree Of Coherence ◽  
Spectral Degree

scholarly journals Light waves scattering from an anisotropic semi-soft boundary medium with spectral dependence

2021 ◽  
Vol 51 (2) ◽  
Author(s):  
Zhiru Huang ◽  
Qihang Dai ◽  
Xiaoling Ji ◽  
Tao Wang
Keyword(s):  
Spectral Density ◽  
Scattered Field ◽  
Spectral Dependence ◽  
Scattering Medium ◽  
Center Wavelength ◽  
Maximum Value ◽  
Light Waves ◽  
Degree Of Coherence ◽  
Spectral Degree ◽  
Scattering Potential

The far-zone behavior of polychromatic light waves on scattering from an anisotrophic semi-soft boundary medium with spectral dependence was considered, and the spectral density and the spectral degree of coherence of the far-zone scattered field were investigated. It is shown that the distributions of the spectral density and the spectral degree of coherence of scattered field are closely related with the rms width, the center wavelength, and the maximum value of the center wavelength of the scattering potential of the scattering medium.

Changes in the spectral degree of coherence of a light wave on scattering from a particulate medium

2016 ◽  
Vol 381 ◽  
pp. 210-213 ◽  
Author(s):  
Tao Wang ◽  
Hao Wu ◽  
Yi Ding ◽  
Xiaoling Ji ◽  
Daomu Zhao
Keyword(s):  
Light Wave ◽  
Degree Of Coherence ◽  
Spectral Degree ◽  
Particulate Medium

scholarly journals Generation of an Adjustable Optical Cage through Focusing an Apertured Bessel-Gaussian Correlated Schell-Model Beam

2019 ◽  
Vol 9 (3) ◽  
pp. 550 ◽  
Author(s):  
Lina Guo ◽  
Li Chen ◽  
Rong Lin ◽  
Minghui Zhang ◽  
Yaru Gao ◽  
...  
Keyword(s):  
Thermal Processing ◽  
Gaussian Function ◽  
Spatial Coherence ◽  
Analytical Formula ◽  
Coherent Beam ◽  
Beam Size ◽  
Degree Of Coherence ◽  
Spectral Degree ◽  
Coherence Width ◽  
Effective Beam

An adjustable optical cage generated by focusing a partially coherent beam with nonconventional correlation function named the Bessel–Gaussian correlated Schell-model (BGCSM) beam is investigated in detail. With the help of the generalized Huygens–Fresnel integral and complex Gaussian function expansion, the analytical formula of the BGCSM beam passing through an apertured ABCD optical system was derived. Our numerical results show that the generated optical cage can be moderately adjusted by the aperture radius, the spatial coherence width, and the parameter β of the BGCSM beam. Furthermore, the effect of these parameters on the effective beam size and the spectral degree of coherence were also analyzed. The optical cage with adjustable size can be applied for particle trapping and material thermal processing.

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