Title :
Harmonic generation and mixing in high-Tc Josephson junctions with terahertz bandwidth
Author :
Grossman, E.N. ; Vale, L.R. ; Zink, L.R. ; Evenson, K.M.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
fDate :
31 May-2 Jun 1995
Abstract :
Recently, we have developed step-edge YBCO Josephson junctions with characteristic frequencies fc=(2e/h)(IcRn) of up to 5 THz (where I c and Rn are the junction´s critical current and normal-state resistance). Our project´s overall aim is to explore the capabilities of these junctions for several types of frequency translation, utilizing the junction´s ability to support very high frequency currents. These include high bandwidth mixing at CO2 laser (30 THz) and visible frequencies, low noise mixing at THz frequencies, and harmonic mixing from mm-wave up to THz frequencies
Keywords :
barium compounds; harmonic generation; high-temperature superconductors; mixers (circuits); superconducting junction devices; superconducting microwave devices; yttrium compounds; 30 THz; 5 THz; CO2 laser; MM-wave frequencies; THz frequencies; YBaCuO; bandwidth; frequency translation; harmonic generation; high frequency currents; high-Tc superconductor; mixing; step-edge YBCO Josephson junction; visible frequencies; Bandwidth; Current-voltage characteristics; Frequency conversion; Frequency measurement; High temperature superconductors; Josephson effect; Josephson junctions; Lighting; Masers; Yttrium barium copper oxide;
Conference_Titel :
Frequency Control Symposium, 1995. 49th., Proceedings of the 1995 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-2500-1
DOI :
10.1109/FREQ.1995.483903
