Experimental investigation of chirped amplitude modulation heterodyne ghost imaging

Optics Express
Long PanShensheng Han

Abstract

We have constructed a chirped amplitude modulation heterodyne ghost imaging (CAM-HGI) experimental system that demonstrates a robust ability against background light in experiments. In the experiments, the background light is simulated by irradiating a spatiotemporal random modulated light field onto the target. The effects of background light, modulation depth and modulation duration of the signal light source on CAM-HGI are investigated experimentally. The results show that the quality of CAM-HGI can be improved by increasing the modulation depth and the modulation duration of the signal light source, and more importantly, an image with a good signal-to-noise ratio (SNR) can be achieved even when the irradiation SNR is lower than -30 dB. This technique of CAM-HGI has an important application prospect for laser imaging in strong background light environments.

References

Feb 3, 2004·Physical Review Letters·Ryan S BenninkJohn C Howell
Apr 20, 2004·Physical Review Letters·Jing Cheng, Shensheng Han
Oct 4, 2005·Optics Letters·Da ZhangXi-Hao Chen
Sep 28, 2010·Physical Review Letters·F FerriA Gatti
Feb 2, 2011·Optics Letters·Wenlin Gong, Shensheng Han
May 9, 2012·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Baris I Erkmen
Mar 12, 2013·Physical Review Letters·M BinaF Ferri
Mar 20, 2015·Scientific Reports·Wenlin Gong, Shensheng Han
May 18, 2016·Scientific Reports·Wenlin GongShensheng Han
Nov 20, 2016·Optics Express·Chenjin DengShensheng Han

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