Single-shot thermal ghost imaging using wavelength-division multiplexing

Ghost imaging (GI) is an emerging technique that reconstructs the target scene from its correlated measurements with a sequence of patterns. Restricted by the multi-shot principle, GI usually requires long acquisition time and is limited in observation of dynamic scenes. To handle this problem, this...

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Published in:Applied physics letters 2018-01, Vol.112 (5)
Main Authors: Deng, Chao, Suo, Jinli, Wang, Yuwang, Zhang, Zhili, Dai, Qionghai
Format: Article
Language:English
Subjects:
Applied physics
Broadband
Correlation analysis
Diffusers
Photons
Shot
Spatial data
Thermal imaging
Wave division multiplexing
Wavelength division multiplexing
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Wang, Yuwang
Zhang, Zhili
Dai, Qionghai
description Ghost imaging (GI) is an emerging technique that reconstructs the target scene from its correlated measurements with a sequence of patterns. Restricted by the multi-shot principle, GI usually requires long acquisition time and is limited in observation of dynamic scenes. To handle this problem, this paper proposes a single-shot thermal ghost imaging scheme via a wavelength-division multiplexing technique. Specifically, we generate thousands of correlated patterns simultaneously by modulating a broadband light source with a wavelength dependent diffuser. These patterns carry the scene's spatial information and then the correlated photons are coupled into a spectrometer for the final reconstruction. This technique increases the speed of ghost imaging and promotes the applications in dynamic ghost imaging with high scalability and compatibility.
doi_str_mv 10.1063/1.5001750
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subjects Applied physics
Broadband
Correlation analysis
Diffusers
Photons
Shot
Spatial data
Thermal imaging
Wave division multiplexing
Wavelength division multiplexing
title Single-shot thermal ghost imaging using wavelength-division multiplexing
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