A high Tc Josephson device for high frequency detection applications is being developed, consisting of an YBCO/PBCO/YBCO ramp type junction and a broad band log-periodic antenna. In this contribution we present the response of such a device to (near) mm wave irradiation. Shapiro steps have been observed up to very high voltage values - nearly 4 mV at 10 K, at the maximum of the radiation power. The modulation of the step amplitudes shows very good resemblence with the predictions from the Resistively Shunted Junction model.
|Number of pages||2|
|Publication status||Published - 1994|
|Event||20th International Conference on Low Temperature Physics, LT-20 1993 - Eugene, United States|
Duration: 4 Aug 1993 → 11 Aug 1993
Conference number: 20