Title :
Broadband THz detection by high-Tc Josephson junctions
Author :
Divin, Y.Y. ; Pavlovskii, V.V. ; Tkachev, D.A. ; Volkov, O.Y. ; Gubankov, V.N. ; Urban, K.
Author_Institution :
Res. Center Juelich, Juelich
Abstract :
Detection of THz radiation by YBa2Cu3O7-x Josephson bicrystal junctions with high characteristic voltages IcRn up to 8 mV has been studied. The high-resistance junctions have demonstrated a classical detection of radiation with frequencies up to terahertz range. It was shown by numerical simulations, that the values of noise equivalent power NEP < 5 times10-15 W/Hz1/2 can be reached at the frequencies up to 1.5 THz at junction temperature of 30 K.
Keywords :
Josephson effect; barium compounds; bicrystals; high-temperature superconductors; submillimetre wave detectors; superconducting junction devices; superconducting microwave devices; yttrium compounds; V-I characteristics; YBa2Cu3O7; broadband THz detection; high-Tc Josephson bicrystal junctions; high-resistance junctions; noise equivalent power; numerical simulations; temperature 30 K; Frequency; Josephson effect; Josephson junctions; Numerical simulation; Radiation detectors; Semiconductor device noise; Semiconductor radiation detectors; Superconducting device noise; Temperature distribution; Voltage;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0400-2
Electronic_ISBN :
1-4244-0400-2
DOI :
10.1109/ICIMW.2006.368553
