Share Email Print
cover

Proceedings Paper

Terahertz 3D imaging with a CW source and phase-shifting interferometry
Author(s): Yoshiaki Sasaki; Chiko Otani; Hiroshi Kasuga; Hitoshi Ohmori; Masayuki Suga; Tetsuya Yuasa
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We will present two kinds of terahertz (THz) 3D imaging performed with a continuous-wave (CW) source and phase-shifting interferometry. The first one is THz computed tomography (CT) by using phase information instead of intensity information. This minimized the effect of change in the signal strength due to diffraction and artifacts especially emerged around the edge of boundary between different materials. The second one is for the depth imaging of the surface of reflecting materials. By using a simple Michelson’s interferometer, we achieved the depth resolution of 1.1 μm, corresponding to 1/440 of the used wavelength (480 μm).

Paper Details

Date Published: 31 May 2013
PDF: 6 pages
Proc. SPIE 8716, Terahertz Physics, Devices, and Systems VII: Advanced Applications in Industry and Defense, 87160V (31 May 2013); doi: 10.1117/12.2017007
Show Author Affiliations
Yoshiaki Sasaki, RIKEN (Japan)
Chiko Otani, RIKEN (Japan)
Hiroshi Kasuga, RIKEN (Japan)
Hitoshi Ohmori, RIKEN (Japan)
Masayuki Suga, Yamagata Univ. (Japan)
Tetsuya Yuasa, Yamagata Univ. (Japan)


Published in SPIE Proceedings Vol. 8716:
Terahertz Physics, Devices, and Systems VII: Advanced Applications in Industry and Defense
Mehdi F. Anwar; Thomas W. Crowe; Tariq Manzur, Editor(s)

© SPIE. Terms of Use
Back to Top