High-resolution THz time-of-flight imaging with reflective optics

Hoseong Yoo; Jangsun Kim; Yeong-Hwan Ahn

doi:10.1117/12.3002143

12 March 2024 High-resolution THz time-of-flight imaging with reflective optics

Hoseong Yoo, Jangsun Kim, Yeong-Hwan Ahn

Proceedings Volume PC12885, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVII; PC1288504 (2024) https://doi.org/10.1117/12.3002143
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

In this study, we developed THz time-of-flight imaging based on all-reflective optics to preserve the high-frequency components of a THz antenna for inline applications. In particular, asynchronous optical sampling enables rapid scanning at 200 Hz per pixel with a full time-delay of 10 ns. This configuration enabled us to obtain phase and amplitude images with a spatial resolution of 0.5 mm for non-destructive testing applications such as finding defects in packaged chips. Also, we introduced conformal mapping techniques for maintaining high spatial resolution, applicable for objects with variable heights.

Conference Presentation

Citation Download Citation

Hoseong Yoo, Jangsun Kim, and Yeong-Hwan Ahn "High-resolution THz time-of-flight imaging with reflective optics", Proc. SPIE PC12885, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVII, PC1288504 (12 March 2024); https://doi.org/10.1117/12.3002143

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available