PT Journal
AU Galin, MA
   Klushin, AM
   Kurin, VV
   Seliverstov, SV
   Finkel, MI
   Goltsman, GN
   Müller, F
   Scheller, T
   Semenov, AD
TI Towards local oscillators based on arrays of niobium Josephson junctions
SO Supercond. Sci. Technol.
JI Supercond. Sci. Technol.
PY 2015
BP 055002 (1 to 7)
VL 28
IS 5
DI 10.1088/0953-2048/28/5/055002
DE Josephson junction local oscillators; JJ LO
AB Various applications in the field of terahertz technology are in urgent need of compact, wide-tunable solid-state continuous wave radiation sources with a moderate power. However, satisfactory solutions for the THz frequency range are scarce yet. Here we report on coherent radiation from a large planar array of Josephson junctions (JJs) in the frequency range between 0.1 and 0.3 THz. The external resonator providing the synchronization of JJ array is identified as a straight fragment of a single-strip-line containing the junctions themselves. We demonstrate a prototype of the quasioptical heterodyne receiver with the JJ array as a local oscillator and a hot-electron bolometer mixer.
ER