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Proceedings Paper

Femtosecond optical response of Y-Ba-Cu-O films and their applications in optoelectronics
Author(s): Roman Sobolewski; Lei Shi; Ting Gong; W. Xiong; X. Weng; Y. Kostoulas; Philippe M. Fauchet
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Paper Abstract

We report systematic studies of the femtosecond transient reflectivity in Y-Ba-Cu-O (YBCO) thin films at temperatures ranging from 12 to 300 K. By using a 2-eV-pump/white-light-probe technique, we have very accurately measured the ultrafast optical response of YBCO as a function of the optical frequency, film oxygen content, and excitation intensity. Our results shed new light on the thermomodulation model, routinely used to interpret time-domain reflectivity data in high-temperature superconductors. We also review the current state of the art in the ultrafast optoelectronic response of YBCO.

Paper Details

Date Published: 20 May 1994
PDF: 11 pages
Proc. SPIE 2159, High-Temperature Superconducting Detectors: Bolometric and Nonbolometric, (20 May 1994); doi: 10.1117/12.176136
Show Author Affiliations
Roman Sobolewski, Univ. of Rochester (United States)
Lei Shi, Univ. of Rochester (United States)
Ting Gong, Univ. of Rochester (United States)
W. Xiong, Univ. of Rochester (United States)
X. Weng, Univ. of Rochester (United States)
Y. Kostoulas, Univ. of Rochester (United States)
Philippe M. Fauchet, Univ. of Rochester (United States)

Published in SPIE Proceedings Vol. 2159:
High-Temperature Superconducting Detectors: Bolometric and Nonbolometric
Michael Nahum; Jean-Claude Villegier, Editor(s)

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