Ultrafast carrier dynamics in laser-excited materials: subpicosecond optical studies |
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| Authors: | F. Quéré S. Guizard P. Martin G. Petite O. Gobert P. Meynadier M. Perdrix |
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| Affiliation: | (1) Service de Recherches sur les Surfaces et l’Irradiation de la Matière, CEA, Centre de Saclay, 91191 Gif sur Yvette, France, FR;(2) Service des Photons, Atomes, Molécules, CEA, Centre de Saclay, 91191 Gif sur Yvette, France, FR |
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| Abstract: | 2 , MgO and Al2O3) irradiated by short laser pulses (70 fs to 1.3 ps) at intensities below and above breakdown threshold. This is achieved with the help of time-resolved interferometry in the frequency domain, which was successfully used to study the dynamics of photoexcited carriers in insulators. The results obtained under different experimental conditions, distance from the surface, pump intensities and duration, during or after the pump pulse, are discussed and compared to the models recently developed to explain optical breakdown. Received: 20 September 1998 |
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| Keywords: | PACS: 79.20.Ds 78.47.+p |
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