Ghost interference with pseudo-thermal light

Yao, Yin-Ping; Wan, Ren-Gang; Zhang, Shiwei; Song, Jiazheng; Zhang, Tong‐Yi

doi:10.1117/12.999577

Cited by 2 publications

(1 citation statement)

References 16 publications

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“…State-of-the art of pseudo-thermal light source is typically produced by the laser transmitting through a rotary ground glass [ 12 , 13 , 14 ]. When quantum correlated imaging technology is applied in remote sensing, missile-borne, or satellite-borne remote imaging, higher requirements for the pseudo-thermal light source are needed.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Random Microwell Arrays as Pseudo-Thermal Speckle Light Source

et al. 2018

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Quantum correlated imaging using the intensity fluctuations of thermal light possesses advantages of high resolution and strong anti-interference ability. The common method to produce pseudo-thermal light source is using a rotary ground glass and transmission of laser beam. In the present work, we propose a method for the fabrication of microwell arrays with randomly varied diameters, which could be used as a new structural element for pseudo-thermal speckle light source. If these are etched with random sizes then they may also have random and complex varying curvatures (diffusion limited etching) leading to random destructive interference of the coherent beam which could be a good thing. The microwell arrays, with diameters randomly varying from 5 μm to 40 μm, height varying from 200 nm to 20 μm, were fabricated by photolithography combined with acid etching. The experimental conditions are simple and can be scaled up to for large structures. The produced microwell arrays can transform the laser beam to a pseudo-thermal light source with a certain divergent angle by rational designing of mask and adjustable process parameters.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Random Microwell Arrays as Pseudo-Thermal Speckle Light Source

et al. 2018

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Performance analysis of compressive ghost imaging based on different signal reconstruction techniques

et al. 2015

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We present different signal reconstruction techniques for implementation of compressive ghost imaging (CGI). The different techniques are validated on the data collected from ghost imaging with the pseudothermal light experimental system. Experiment results show that the technique based on total variance minimization gives high-quality reconstruction of the imaging object with less time consumption. The different performances among these reconstruction techniques and their parameter settings are also analyzed. The conclusion thus offers valuable information to promote the implementation of CGI in real applications.

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Ghost interference with pseudo-thermal light

Cited by 2 publications

References 16 publications

Fabrication of Random Microwell Arrays as Pseudo-Thermal Speckle Light Source

Fabrication of Random Microwell Arrays as Pseudo-Thermal Speckle Light Source

Performance analysis of compressive ghost imaging based on different signal reconstruction techniques

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