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 | Vardeny, Zeev Valentine; Symko, Orest George | Femtosecond dynamics of quasi-particles in YBa2Cu3O7-δ superconductor films | We have studied the transient electronic response of YBa2Cu307-δ epitaxialy grown H T c superconductor thin films in the femtosecond time domain, using transient photoinduced reflectivity (AR) with 60 fsec time resolution. For temperatures T>Tc only a bolometric signal was observed with ARrO. For ... | Femtosecond dynamics; YBa2Cu3O7-8; Transient electronic response; Transient optical response | 1991-03 |