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Transient Reflectivity of Gallium Films Induced by Femtosecond Laser

Gamaly, Eugene G; Rode, Andrei V; Uteza, O; Samoc, Marek; Luther-Davies, Barry


The transient reflectivity of gallium films induced by 150fs laser pulses has been studied by the pump-probe technique at the pump intensities of 109-1012W/cm2. The time-resolved reflectivity rise of the femtosecond probe in the first 1-4ps after the pump pulse excitation depends strongly on the pump pulse intensity. We demonstrate that the transient electron-phonon collision rate extracted from the reflectivity data is a strong function of the temperature, and thus the laser intensity. This...[Show more]

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
Source: Applied Surface Science
DOI: 10.1016/S0169-4332(02)00401-4


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