Palm-size and real-time terahertz imager, and its application to development of  terahertz sources

Naoki Oda; Tsutomu Ishi; Seiji Kurashina; Takayuki Sudou; Masaru Miyoshi; Takao Morimoto; Takao Yamazaki; Taku Tsuboi; Tokuhito Sasaki

doi:10.1117/12.2015345

31 May 2013 Palm-size and real-time terahertz imager, and its application to development of terahertz sources

Naoki Oda, Tsutomu Ishi, Seiji Kurashina, Takayuki Sudou, Masaru Miyoshi, Takao Morimoto, Takao Yamazaki, Taku Tsuboi, Tokuhito Sasaki

Author Affiliations +

Proceedings Volume 8716, Terahertz Physics, Devices, and Systems VII: Advanced Applications in Industry and Defense; 871603 (2013) https://doi.org/10.1117/12.2015345
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

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.

Citation Download Citation

Naoki Oda, Tsutomu Ishi, Seiji Kurashina, Takayuki Sudou, Masaru Miyoshi, Takao Morimoto, Takao Yamazaki, Taku Tsuboi, and Tokuhito Sasaki "Palm-size and real-time terahertz imager, and its application to development of terahertz sources", Proc. SPIE 8716, Terahertz Physics, Devices, and Systems VII: Advanced Applications in Industry and Defense, 871603 (31 May 2013); https://doi.org/10.1117/12.2015345

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