THz Reflective Imaging System Utilizing Broadband Homodyne Amplification for Artifact-Free See-Through Imaging
Open Access
- 16 October 2020
- journal article
- research article
- Published by MDPI AG in Applied Sciences
- Vol. 10 (20) , 7228
Abstract
Terahertz (THz) technology offers unique see-through imaging capability for various non-destructive inspection applications. In this work, we implemented a broadband continuous-wave THz imaging system to study technical issues related to the see-through imaging, including frequency-dependent resolution, material loss, and interference-induced artifacts. The interference-induced false contrast and artifacts were observed, which were suppressed by broadband imaging techniques adopting the homodyne signal amplification by interferometric setup to overcome the material loss.Keywords
Funding Information
- ICT R&D Program of MSIP/IITP (2017-0-00619)
- Ministry of Trade, Industry, and Energy (MOTIE) and Ministry of SMEs and Startups (MSS) of the Korean Government (S2524372)
- Electronics and Telecommunications Research Institute (20ZB1130, 20ZH1121)
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