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학술지 THz Reflective Imaging System Utilizing Broadband Homodyne Amplification for Artifact-Free See-Through Imaging
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저자
문기원, 이일민, 이의수, 박경현
발행일
202010
출처
Applied Sciences, v.10 no.20, pp.1-11
ISSN
2076-3417
출판사
MDPI
DOI
https://dx.doi.org/10.3390/app10207228
협약과제
20ZH1100, 연결의 한계를 극복하는 초연결 입체통신 기술 연구, 변우진
초록
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 제안 키워드
Imaging capability, Imaging techniques, Non-Destructive Inspection, Reflective imaging, THz imaging system, Terahertz (THz) technology, continuous wave(CW), frequency dependent, signal amplification, technical issues
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