Chinese Journal of Lasers, Volume. 46, Issue 12, 1214001(2019)

Terahertz Ghost Imaging Based on Imaging-Transformation Measurement Matrices

Haiyue Yan1...2, Chengqiang Zhao1,*, Wendong Xu1, and Shuofeng Li12 |Show fewer author(s)
Author Affiliations
  • 1State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences, Shanghai 201800, China
  • 2Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences,Beijing 100049, China
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    Herein, a new imaging-transformation method for acquiring a measurement matrix is proposed. A visible light camera is used to capture amplitude-modulated plate pattern information, then a coherent imaging algorithm is used to obtain the simulated light field, and finally the simulated light field is transformed into a ghost imaging measurement matrix. We validate the feasibility of this imaging-transformation method using an established terahertz ghost imaging system. Experimental results show that the measurement matrix obtained using the proposed method can enable terahertz ghost imaging to reach diffraction limit resolution. The resulting image quality is superior to that obtained using the classical scanning method. In addition, we experimentally study the influences of sampling frequency, pupil function, and matrix resolution on the final image quality.

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    Haiyue Yan, Chengqiang Zhao, Wendong Xu, Shuofeng Li. Terahertz Ghost Imaging Based on Imaging-Transformation Measurement Matrices[J]. Chinese Journal of Lasers, 2019, 46(12): 1214001

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    Paper Information

    Category: terahertz technology

    Received: Jun. 10, 2019

    Accepted: Aug. 2, 2019

    Published Online: Dec. 2, 2019

    The Author Email: Zhao Chengqiang (chqzhao@siom.ac.cn)

    DOI:10.3788/CJL201946.1214001

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