Virtual ghost imaging with partially coherent hyperbolic cosine Gaussian beam through turbulence

2014 ◽  
Author(s):  
Xu Yang ◽  
Yong Zhang ◽  
Lu Xu ◽  
Chenfei Jin ◽  
Qin Xin ◽  
...  
Keyword(s):  
Gaussian Beam ◽  
Ghost Imaging ◽  
Partially Coherent ◽  
Hyperbolic Cosine

Ghost imaging and its visibility with partially coherent elliptical Gaussian Schell-model beams

2015 ◽  
Vol 379 (42) ◽  
pp. 2789-2794 ◽  
Author(s):  
Meilan Luo ◽  
Weiting Zhu ◽  
Daomu Zhao
Keyword(s):  
Ghost Imaging ◽  
Partially Coherent

Focusing Properties of Partially Coherent Gaussian Beam with Cosine-Lorentz Correlated Structural Function

2017 ◽  
Vol 37 (11) ◽  
pp. 1126001
Author(s):  
朱 洁 Zhu Jie ◽  
唐慧琴 Tang Huiqin ◽  
李晓利 Li Xiaoli
Keyword(s):  
Gaussian Beam ◽  
Structural Function ◽  
Partially Coherent ◽  
Focusing Properties

Focal patterns of higher order hyperbolic-cosine-Gaussian beam with one optical vortex

2011 ◽  
Vol 42 (6-7) ◽  
pp. 367-380 ◽  
Author(s):  
Xiumin Gao ◽  
Qi Wang ◽  
Qiufang Zhan ◽  
Maojin Yun ◽  
Hanming Guo ◽  
...  
Keyword(s):  
Gaussian Beam ◽  
Optical Vortex ◽  
Higher Order ◽  
Hyperbolic Cosine

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.

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