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Optimization for continuous-wave terahertz reflection imaging for biological tissues
Limin Wu1,2, Yuye Wang1,2, Haibin Li1,2
1Institute of Laser and Optoelectronics, School of Precision Instruments and Optoelectronic Engineering, Tianjin University, Tianjin, China.
Abstract:
Continuous-wave terahertz reflection imaging is a potential tool for biological tissues. Based on our home-made continuous-wave terahertz reflection imaging system, the effect of both polarization mode and reflection window on the imaging performance is studied theoretically and experimentally, showing good agreement. By taking obtaining sample information and image contrast into consideration, p-polarized terahertz waves are recommended. Moreover, considering the sample boundary identification and the image contrast, selection criteria for reflection window are proposed. This work will help to improve the performance of continuous-wave terahertz reflection imaging and accelerate the THz imaging in biological application.

