%0 Journal Article %T Towards local oscillators based on arrays of niobium Josephson junctions %A Galin, M. A. %A Klushin, A. M. %A Kurin, V. V. %A Seliverstov, S. V. %A Finkel, M. I. %A Goltsman, G. N. %A Müller, F. %A Scheller, T. %A Semenov, A. D. %J Supercond. Sci. Technol. %D 2015 %V 28 %N 5 %@ 0953-2048 %F Galin_etal2015 %O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1347), last updated on Wed, 12 May 2021 18:22:11 -0500 %X 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. %K Josephson junction local oscillators %K JJ LO %R 10.1088/0953-2048/28/5/055002 %U https://iopscience.iop.org/article/10.1088/0953-2048/28/5/055002 %U https://doi.org/10.1088/0953-2048/28/5/055002 %P 055002 (1 to 7)