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Proceedings Paper

Palm-size and real-time terahertz imager, and its application to development of terahertz sources
Author(s): Naoki Oda; Tsutomu Ishi; Seiji Kurashina; Takayuki Sudou; Masaru Miyoshi; Takao Morimoto; Takao Yamazaki; Taku Tsuboi; Tokuhito Sasaki
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Paper Abstract

This paper describes features of uncooled palm-size and real-time Terahertz (THz) imager. The THz imager and powerful THz quantum cascade laser were assembled into THz microscope with which THz images of narrow string were obtained at 4.3 and 2.0 THz. The analyses on these images show that spatial resolutions evaluated at two frequencies are consistent with Fraunhofer diffraction limit. THz imager has been applied to investigate beam patterns for a variety of THz sources. The experimental results on beam patterns show that THz imager plays an important role in developing THz sources. A method for reducing non-uniformity due to strong coherency of THz sources is finally presented.

Paper Details

Date Published: 31 May 2013
PDF: 10 pages
Proc. SPIE 8716, Terahertz Physics, Devices, and Systems VII: Advanced Applications in Industry and Defense, 871603 (31 May 2013); doi: 10.1117/12.2015345
Show Author Affiliations
Naoki Oda, NEC Corp. (Japan)
Tsutomu Ishi, NEC Corp. (Japan)
Seiji Kurashina, NEC Corp. (Japan)
Takayuki Sudou, NEC Corp. (Japan)
Masaru Miyoshi, NEC Corp. (Japan)
Takao Morimoto, NEC Corp. (Japan)
Takao Yamazaki, NEC Corp. (Japan)
Taku Tsuboi, NEC Corp. (Japan)
Tokuhito Sasaki, NEC Corp. (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)

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