Energy-Selective X-Ray Ghost Imaging
Yu-Hang He1,2 , Ai-Xin Zhang1,2 , Wen-Kai Yu3 , Li-Ming Chen4** , Ling-An Wu1,2**
1 Institute of Physics, Chinese Academy of Sciences, Beijing 1001912 University of Chinese Academy of Sciences, Beijing 1000493 School of Physics, Beijing Institute of Technology, Beijing 1000814 Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240
Abstract ：X-ray ghost imaging (XGI) has opened up a new avenue for damage-free medical imaging. Here energy-selective spectroscopic XGI under poor illumination is demonstrated with a single-pixel detector for the first time. The key device was a specially fabricated Au mask incorporating a new modulation pattern design, by which means images of a real object were obtained with a spatial resolution of 10 μm and a spectral energy resolution of about 1.5 keV. Compressed sensing was also introduced to improve the image quality. Our proof-of-principle experiment extends the methodology of XGI to make possible the retrieval of spectral images with only a single-pixel detector, and paves the way for potential applications in many fields such as biology, material science and environmental sensing.
收稿日期: 2020-02-13
出版日期: 2020-03-24
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2020, Vol. 37 
