Submillimeter wave detection and mixing experiments using high temperature Josephson junctions

J. Chen, E. Kobayashi, H. Myoren, K. Nakajima, T. Yamashita, S. Linzen, F. Schmidl, P. Seidel

Research output: Contribution to journalConference articlepeer-review


Using high temperature grain boundary Josephson junctions (GBJJs) made of YBa2Cu3O7-δ (YBCO) deposited across silicon bicrystal boundary, we successfully demonstrated direct detection at wavelength as short as 118.8 μm (frequency of 2.525 THz) 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 μm 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.

Original languageEnglish
Pages (from-to)200-205
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1998
EventProceedings of the 1998 Conference on Millimeter and Submillimeter Waves IV - San Diego, CA, USA
Duration: 1998 Jul 201998 Jul 23

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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