Estudo de fenomonos ultra-rapidos
AUTOR(ES)
Rubens da Silva Miranda
DATA DE PUBLICAÇÃO
1989
RESUMO
In this work process of ultrashort light pulses generation from a colliding pulse modelocked laser was studied. A model was developed wick explains how a frequency sweep is generated in the pulse on propagation through the saturable absorber. Using this laser, the hot carrier thermalization time in a electrodeposited CdSe film was measured in a pump and probe experiment as well. This time was found to vary from 300 fs to 1.5 ps as the density of injected carriers increased from 6 x 1016 cm-3 to 4,7 x 1018cm-3. To describe our data a model was proposed. This model includes sreening of the Coulomb interaction and line broadening of the spectral distribution of electrons which increases with the carrier-carrier scattering rate
ASSUNTO(S)
ACESSO AO ARTIGO
http://libdigi.unicamp.br/document/?code=vtls000048348Documentos Relacionados
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