Huber, Wolfgang M. and Berr, M. and Kalbeck, A. and Prettl, Wilhelm and Huggard, P. G. (1996) Far infrared video detection and difference frequency mixing with tilted c-axis epitaxial YBa2Cu3O7-delta thin films. APPLIED PHYSICS LETTERS, 68 (23). pp. 3338-3340. ISSN 0003-6951, 1077-3118
Full text not available from this repository.Abstract
Epitaxial YBa2Cu3O7-delta thin films, grown with a controllable misalignment between c-axis and surface normal, exhibit a sensitive photoresponse to far infrared laser radiation at temperatures below T-c. While no photoresponse was observed in c-axis normal films, a sensitivity of 0.2 V/W was measured at a wavelength of 432 mu m for a film with a 20 degrees c-axis tilt. Difference frequency mixing of two laser modes has also been demonstrated at intermediate frequencies between 200 kHz and 6 MHz. Both mixing and video detection are believed to originate in the ac Josephson effect: the effect of the tilted growth is to allow a component of the radiation field to be applied along the c-axis, thus modulating the relatively weak Josephson coupling in this direction. (C) 1996 American Institute of Physics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BI2SR2CACU2O8; SUPERCONDUCTORS |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Wilhelm Prettl |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Jul 2023 07:55 |
| Last Modified: | 05 Jul 2023 07:55 |
| URI: | https://pred.uni-regensburg.de/id/eprint/51648 |
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