Terahertz direct detector using superconducting tunnel junctions

Chiko Otani; Seiichiro Ariyoshi; Hiroshi Matsuo; Takahiro Morishima; Masatsugu Yamashita; Kodo Kawase; Hiromi Sato; Hirohiko M. Shimizu

doi:10.1117/12.528886

8 April 2004 Terahertz direct detector using superconducting tunnel junctions

Chiko Otani, Seiichiro Ariyoshi, Hiroshi Matsuo, Takahiro Morishima, Masatsugu Yamashita, Kodo Kawase, Hiromi Sato, Hirohiko M. Shimizu

Author Affiliations +

Proceedings Volume 5354, Terahertz and Gigahertz Electronics and Photonics III; (2004) https://doi.org/10.1117/12.528886
Event: Integrated Optoelectronic Devices 2004, 2004, San Jose, CA, United States

Abstract

High-sensitivity terahertz direct detectors using superconducting tunnel junctions were fabricated. They were designed for detecting terahertz radiation in the frequency range of 0.4 and 0.65 THz with the fractional bandwidth of above 10 percent. The results of their performance evaluation of five detector elements are presented. We show the results of the frequency response as well as that the absolute efficiency ranged from 10 to 30 percent and that the the sensitivity was 1.9 x 10^-16 W Hz^-0.5 in noise equivalent power.

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Chiko Otani, Seiichiro Ariyoshi, Hiroshi Matsuo, Takahiro Morishima, Masatsugu Yamashita, Kodo Kawase, Hiromi Sato, and Hirohiko M. Shimizu "Terahertz direct detector using superconducting tunnel junctions", Proc. SPIE 5354, Terahertz and Gigahertz Electronics and Photonics III, (8 April 2004); https://doi.org/10.1117/12.528886

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