THz 3D imaging with phase-shifting interferometry

Author

Otani, C. ; Sasaki, Yutaka ; Yuasa, Takeshi ; Suga, Mikio ; Kasuga, H. ; Ohmori, Hiromitsu

Author_Institution

Terahertz Sensing & Imaging Team, RIKEN, Sendai, Japan

fYear

2013

fDate

June 30 2013-July 4 2013

Firstpage

1

Lastpage

2

Abstract

We have performed two kinds of terahertz (THz) 3D imaging with a continuous-wave (CW) source and phase-shifting interferometry. In the first one, THz computed tomography (CT), the phase information has been utilized to reconstruct the CT image instead of utilizing the line-of-sight absorption. We show that the method minimized the artificial effect due to the reflection or diffraction at the structural boundaries. The second, the depth imaging, has utilized the phase information for imaging the surface features of reflecting materials.

Keywords

computerised tomography; image reconstruction; phase shifting interferometry; terahertz wave imaging; CT image; CW source; THz 3D imaging; THz computed tomography; artificial effect; continuous-wave source; diffraction; image reconstruction; line-of-sight absorption; phase information; phase shifting interferometry; reflection; structural boundaries; Computed tomography; Interferometers; Mirrors; Optical interferometry; Optical surface waves; Optimized production technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013 Conference on

Conference_Location

Kyoto

Type

conf

DOI

10.1109/CLEOPR.2013.6600105

Filename

6600105