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Journal Article THz Reflective Imaging System Utilizing Broadband Homodyne Amplification for Artifact-Free See-Through Imaging
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Authors
Kiwon Moon, Il-Min Lee, Eui Su Lee, Kyung Hyun Park
Issue Date
2020-10
Citation
Applied Sciences, v.10, no.20, pp.1-11
ISSN
2076-3417
Publisher
MDPI
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.3390/app10207228
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.
KSP Keywords
Imaging techniques, Non-destructive Inspection, Reflective imaging, THz imaging system, Terahertz (THz) technology, continuous wave(CW), frequency dependent, imaging capability, signal amplification, technical issues
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