Propagation properties of radially polarized partially coherent beam in the oceanic turbulence

2019 ◽  
Author(s):  
Jie Zhou ◽  
Xiao Yuan ◽  
Xiang Zhang ◽  
Fan Gao ◽  
Baoxing Xiong
Keyword(s):  
Coherent Beam ◽  
Oceanic Turbulence ◽  
Partially Coherent ◽  
Propagation Properties ◽  
Radially Polarized

Propagation properties of radially polarized partially coherent beam in turbulent atmosphere

2011 ◽  
Vol 49 (9-10) ◽  
pp. 1238-1244 ◽  
Author(s):  
He Wang ◽  
Dajun Liu ◽  
Zhongxiang Zhou ◽  
Shoufeng Tong ◽  
Yansong Song
Keyword(s):  
Turbulent Atmosphere ◽  
Coherent Beam ◽  
Partially Coherent ◽  
Propagation Properties ◽  
Radially Polarized

scholarly journals Ghost Imaging with a Partially Coherent Beam Carrying Twist Phase in a Turbulent Ocean: A Numerical Approach

2019 ◽  
Vol 9 (15) ◽  
pp. 3023 ◽  
Author(s):  
Yonglei Liu ◽  
Xianlong Liu ◽  
Lin Liu ◽  
Fei Wang ◽  
Yuping Zhang ◽  
...  
Keyword(s):  
Numerical Approach ◽  
Coherent Beam ◽  
Ghost Imaging ◽  
Oceanic Turbulence ◽  
Partially Coherent ◽  
Rytov Approximation ◽  
Twist Factor ◽  
Imaging Approach ◽  
Optical Paths

Ghost imaging (GI) is an indirect imaging approach that can retrieve an object’s image even in a harsh environment through measuring the fourth-order correlation function (FOCF) between the signal and idle optical paths. In this paper, we study lensless GI with a partially coherent beam carrying twist phase, i.e., twisted Gaussian Schell-model (TGSM) beam, in the presence of oceanic turbulence. Explicit expression of the FOCF is derived based on the optical coherence theory and Rytov approximation, and the effects of the twist phase and the oceanic turbulence on the quality and visibility of image are investigated in detail through numerical examples. Our results show that the simulated oceanic turbulence strongly affects the GI. The quality of image decreases monotonously with an increase of the strength of turbulence whereas the visibility increases. When the illumination light carries a twist phase, the visibility of the image is improved while the quality of the image is reduced in contrast to those without a twist phase. By properly selecting the strength of the twist phase, the image can still be maintained at an acceptable level of quality with high visibility. Furthermore, it is found that the quality and visibility of the ghost image are less affected by the oceanic turbulence using a TGSM beam with larger twist factor. Our findings will be useful for the application of GI in an oceanic turbulent environment.

scholarly journals Correlation-induced self-focusing and self-shaping effect of a partially coherent beam

2016 ◽  
Vol 4 ◽  
Author(s):  
Yahong Chen ◽  
Yangjian Cai
Keyword(s):  
Correlation Function ◽  
Intensity Distribution ◽  
High Power ◽  
Thermal Processing ◽  
Coherent Beam ◽  
The Other ◽  
Model Function ◽  
Partially Coherent ◽  
Self Focusing ◽  
Propagation Properties

A new specially correlated partially coherent beam named nonuniform multi-Gaussian correlated (NMGC) partially coherent beam is introduced. The correlation functions of such beam in $x$ and $y$ directions are different from each other, i.e., nonuniform correlation function in one direction and multi-Gaussian correlated Schell-model function in the other direction. The propagation properties of an NMGC partially coherent beam in free pace are demonstrated, and we find that the intensity distribution of such beam exhibits self-focusing and self-shifting effect in one direction and self-shaping effect in the other direction on propagation. The correlation-induced self-focusing and self-shaping effect will be useful in some applications, where the high power and shaped laser is required, such as material thermal processing and laser carving.

Propagation properties of partially coherent four-petal Gaussian vortex beams in oceanic turbulence

Laser Physics ◽  
2016 ◽  
Vol 27 (1) ◽  
pp. 016001 ◽  
Author(s):  
Dajun Liu ◽  
Yaochuan Wang ◽  
Guiqiu Wang ◽  
Xixian Luo ◽  
Hongming Yin
Keyword(s):  
Oceanic Turbulence ◽  
Partially Coherent ◽  
Vortex Beams ◽  
Propagation Properties

Propagation properties of radially polarized multi-Gaussian Schell-model beams in oceanic turbulence

2019 ◽  
Vol 36 (10) ◽  
pp. 1719 ◽  
Author(s):  
Zhenzhen Song ◽  
Zhiyuan Han ◽  
Jingfei Ye ◽  
Zhengjun Liu ◽  
Shutian Liu ◽  
...  
Keyword(s):  
Oceanic Turbulence ◽  
Propagation Properties ◽  
Radially Polarized
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