Terahertz computed tomography of high-refractive-index object based on a novel experimental procedure

Linyu Chen; Yuye Wang; Degang Xu; Jia Shi; Yuchen Ren; Changzhao Li; Chao Zhang; Longhuang Tang; Yixin He; Jianquan Yao

doi:10.1117/12.2500717

9 November 2018 Terahertz computed tomography of high-refractive-index object based on a novel experimental procedure

Linyu Chen, Yuye Wang, Degang Xu, Jia Shi, Yuchen Ren, Changzhao Li, Chao Zhang, Longhuang Tang, Yixin He, Jianquan Yao

Proceedings Volume 10826, Infrared, Millimeter-Wave, and Terahertz Technologies V; 108260Z (2018) https://doi.org/10.1117/12.2500717
Event: SPIE/COS Photonics Asia, 2018, Beijing, China

Abstract

Recently, terahertz (THz) computed tomography (CT) has emerged as a possible effective technique for 3D structural information detection. However, THz-CT is difficult to be applied to high refractive index object, due to the severe refraction phenomenon occurred during the acquisition of raw data. We propose a novel experimental procedure to solve this problem. Including the use of a sink filled with liquid whose refractive index is close to the sample, and a correction algorithm to eliminate the noise of liquid. The proposed method is applied to the high-density polyethylene samples of different shapes.

Citation Download Citation

Linyu Chen, Yuye Wang, Degang Xu, Jia Shi, Yuchen Ren, Changzhao Li, Chao Zhang, Longhuang Tang, Yixin He, and Jianquan Yao "Terahertz computed tomography of high-refractive-index object based on a novel experimental procedure", Proc. SPIE 10826, Infrared, Millimeter-Wave, and Terahertz Technologies V, 108260Z (9 November 2018); https://doi.org/10.1117/12.2500717

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