Nonthermal optical response of Y-Ba-Cu-O thin films
- 12 June 1989
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 54 (24), 2473-2475
- https://doi.org/10.1063/1.101539
Abstract
Separate fast and slow components were observed in the electrical response to optical excitation of an Y-Ba-Cu-O thin film prepared by laser deposition. The temperature dependence of these two components indicated different thermal and nonthermal behavior. The speed of the nonthermal component is limited by the 6 ns laser pulse duration used in the excitation. It was also demonstrated that thin films that were optically semitransparent were crucial in the observation of the fast nonthermal response.Keywords
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