SEMENOV, AD and LANG, PT and RENK, KF and GOGIDZE, IG (1991) FAST FAR-INFRARED TO VISIBLE-LIGHT RESPONSE OF A YBA2CU3O7-DELTA FILM MEASURED WITH SUBNANOSECOND RADIATION PULSES. SOLID STATE COMMUNICATIONS, 80 (7). pp. 507-510. ISSN 0038-1098,
Full text not available from this repository.Abstract
We have measured the resistance response of a current biased YBa2Cu3O7-delta thin film (thickness approximately 700 angstrom) at temperatures below T(c) to pulsed laser radiation in a large spectral range from far-infrared waves to visible light. For generation of short pulses we used an optically pumped D2O Raman far-infrared laser and an infrared high pressure CO2 laser, both delivering pulses with durations less than 500 ps, and a Nd:YAG picosecond pulse laser. We found that the response time was less than 0.5 ns at far-infrared frequencies and increased strongly (to approximately 4 ns) at a critical frequency of about 7 THz. The slower response is consistent with heat escape from the film while the fast response may be connected with a nonequilibrium electronic effect.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CONDUCTIVITY; DETECTORS; ELECTRONS; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/54814 |
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