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Proceedings Paper

Terahertz direct detector using superconducting tunnel junctions
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Paper 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.

Paper Details

Date Published: 8 April 2004
PDF: 8 pages
Proc. SPIE 5354, Terahertz and Gigahertz Electronics and Photonics III, (8 April 2004); doi: 10.1117/12.528886
Show Author Affiliations
Chiko Otani, RIKEN - The Institute of Physical and Chemical Research (Japan)
Seiichiro Ariyoshi, RIKEN - The Institute of Physical and Chemical Research (Japan)
Graduate Univ. for Advanced Studies (Japan)
National Astronomical Observatory (Japan)
Hiroshi Matsuo, National Astronomical Observatory of Japan (Japan)
Takahiro Morishima, RIKEN - The Institute of Physical and Chemical Research (Japan)
Masatsugu Yamashita, RIKEN - The Institute of Physical and Chemical Research (Japan)
Kodo Kawase, RIKEN - The Institute of Physical and Chemical Research (Japan)
Hiromi Sato, RIKEN - The Institute of Physical and Chemical Research (Japan)
Hirohiko M. Shimizu, RIKEN - The Institute of Physical and Chemical Research (Japan)


Published in SPIE Proceedings Vol. 5354:
Terahertz and Gigahertz Electronics and Photonics III
R. Jennifer Hwu, Editor(s)

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