Submillimeter-wave detection and mixing experiments using high-temperature Josephson junctions

Jian Chen; Estuko Kobayashi; Hiroaki Myoren; Kensuke Nakajima; Tsutomu Yamashita; Sven Linzen; Frank Schmidl; Paul Seidel

doi:10.1117/12.331166

13 November 1998 Submillimeter-wave detection and mixing experiments using high-temperature Josephson junctions

Jian Chen, Estuko Kobayashi, Hiroaki Myoren, Kensuke Nakajima, Tsutomu Yamashita, Sven Linzen, Frank Schmidl, Paul Seidel

Author Affiliations +

Proceedings Volume 3465, Millimeter and Submillimeter Waves IV; (1998) https://doi.org/10.1117/12.331166
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

Using high temperature grain boundary Josephson junctions (GBJJs) made of YBa₂Cu₃O_7-(delta ) (YBCO) deposited across silicon bicrystal boundary, we successfully demonstrated direct detection at wavelength as short as 118.8 micrometer (frequency of 2.525THz) and the operation temperature up to 70 K. Radiation from a far infrared (FIR) laser was coupled to the junction, via a TPX plano convex lens and a high resistivity Si hyperhemispherical lens. The response at wavelength of 183.4 micrometer was obtained for the YBCO GBJJs on MgO bicrystal substrates. Also, investigated are the effects of response on external DC magnetic fields and polarization of electromagnetic waves as well as the harmonic mixing properties.

Citation Download Citation

Jian Chen, Estuko Kobayashi, Hiroaki Myoren, Kensuke Nakajima, Tsutomu Yamashita, Sven Linzen, Frank Schmidl, and Paul Seidel "Submillimeter-wave detection and mixing experiments using high-temperature Josephson junctions", Proc. SPIE 3465, Millimeter and Submillimeter Waves IV, (13 November 1998); https://doi.org/10.1117/12.331166

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