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20 May 1994 Femtosecond optical response of Y-Ba-Cu-O films and their applications in optoelectronics
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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.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roman Sobolewski, Lei Shi, Ting Gong, W. Xiong, X. Weng, Y. Kostoulas, and Philippe M. Fauchet "Femtosecond optical response of Y-Ba-Cu-O films and their applications in optoelectronics", Proc. SPIE 2159, High-Temperature Superconducting Detectors: Bolometric and Nonbolometric, (20 May 1994); https://doi.org/10.1117/12.176136
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