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Visibility enhancement in two-dimensional lensless ghost imaging with true thermal light |
| Xi-Hao Chen(陈希浩)1, Ling Yan(燕玲)1, Wei Wu(吴炜)1, Shao-Ying Meng(孟少英)1, Ling-An Wu(吴令安)2, Zhi-Bin Sun(孙志斌)3, Chao Wang(王超)3, Guang-Jie Zhai(翟光杰)3 |
1 Key Laboratory of Optoelectronic Devices and Detection Technology, College of Physics, Liaoning University, Shenyang 110036, China;
2 Laboratory of Optical Physics, Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, China;
3 Laboratory of Space Science Experiment Technology, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China |
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Abstract We report an experimental demonstration of two-dimensional (2D) lensless ghost imaging with true thermal light. An electrodeless discharge lamp with a higher light intensity than the hollow cathode lamp used before is employed as a light source. The main problem encountered by the 2D lensless ghost imaging with true thermal light is that its coherence time is much shorter than the resolution time of the detection system. To overcome this difficulty we derive a method based on the relationship between the true and measured values of the second-order optical intensity correlation, by which means the visibility of the ghost image can be dramatically enhanced. This method would also be suitable for ghost imaging with natural sunlight.
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Received: 17 December 2016
Revised: 14 February 2017
Accepted manuscript online:
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11204117, 11304007, and 60907031), the China Postdoctoral Science Foundation (Grant No. 2013M540146), the Fund from the Education Department of Liaoning Province, China (Grant No. L2012001), and the National Hi-Tech Research and Development Program of China (Grant No. 2013AA122902). |
Corresponding Authors:
Xi-Hao Chen, Shao-Ying Meng
E-mail: xi-haochen@163.com;mengshaoying@163.com
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Cite this article:
Xi-Hao Chen(陈希浩), Ling Yan(燕玲), Wei Wu(吴炜), Shao-Ying Meng(孟少英), Ling-An Wu(吴令安), Zhi-Bin Sun(孙志斌), Chao Wang(王超), Guang-Jie Zhai(翟光杰) Visibility enhancement in two-dimensional lensless ghost imaging with true thermal light 2017 Chin. Phys. B 26 060702
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