Mixing at terahertz frequency band using YBa2Cu3O7-δ bicrystal Josephson junctions

J. Chen, H. Myoren, K. Nakajima, T. Yamashita

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26 Citations (Scopus)


A mixing at terahertz (THz) frequency is demonstrated using YBa2Cu3O7-δ (YBCO) bicrystal Josephson junctions. Two frequency components from a slightly misaligned resonator of an far-infrared laser mixed with each other in the junction so that a Shapiro step corresponding to the intermediate frequency (IF) appears in its current-voltage curve. Up to the 490th harmonic mixing between a THz signal and a microwave local oscillator was realized with an IF signal-to-noise ratio of 9 dB.

Original languageEnglish
Pages (from-to)707-709
Number of pages3
JournalApplied Physics Letters
Issue number5
Publication statusPublished - 1997 Aug 4

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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