Laser Induced Absorption of CuCl Microcrystallites in a Glass Matrix

TLDR: Using a pump-and-probe technique, the absorption changes of microcrystallites embedded in a glass matrix are studied in this article, where a blue shift of the resonance and a bleaching of the absorption at photon energies lower than the photon energy of the pump are observed accompanied by an increase of absorption at higher photon energies.

Abstract: Using a “pump-and-probe” technique, the absorption changes of CuCl microcrystallites embedded in a glass matrix are studied. A blue shift of the resonance and a bleaching of the absorption at photon energies lower than the photon energy of the pump, is observed accompanied by an increase of absorption at higher photon energies. Nous etudions les variations induites d'absorption de microcristallites de CuCl dispersees dans du verre, en utilisant une technique „pompe et test”. Nous observons un deplacement vers le bleu de la resonance excitonique, une diminution de l'absorption a des energies de photon inferieures a celle de la pompe, ainsi qu'une augmentation de l'absorption a des energies superieures.