Abstract
The submillimeter wave signal detection has been experimentally studied for a high- T c superconducting device, consisting of a bicrystal YBa 2Cu 3O x Josephson junction, incorporated with a log-periodic antenna. Measurements were carried out in wide range of temperatures T=20–80 K. At relatively high temperatures T>60 K, the thermally activated phase slippage began to predominate. At the same time, a set of clearly resolved detector response functions have been registered up to the temperatures close to the critical one. At the highest temperature T≃80 K, where detector response has been registered, the ratio of the frequency of applied signal f s≃500 GHz to the critical frequency of Josephson junction f c has been estimated as large as f s/ f c≃40.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
