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Proceedings Paper

Multiphoton excited emission in zinc selenide and other crystals
Author(s): Kirill A. Prokhorov; Alexander M. Prokhorov; Merab I. Djibladze; George N. Kekelidze; Vladimir S. Gorelik
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Paper Abstract

Experimental results of two-photon and three-photon excited luminescence in semiconductors and molecular crystals at room temperature are discussed. Dependence of two-photon luminescent intensity upon intensity of pumping light is analyzed for ZnSe samples. The power index of this nonlinear dependence for 532 nm excitation changes from 2 for 6 MW/cm2 to 3,6 for 30 MW/cm2 excitation intensity. The estimated optical gain coefficient reveals value up to 40 cm-1. Two-photon copper laser excitation of investigated molecular crystals and organic materials demonstrate luminescence from impurity and excitonic levels.

Paper Details

Date Published: 1 October 1991
PDF: 5 pages
Proc. SPIE 1501, Advanced Laser Concepts and Applications, (1 October 1991); doi: 10.1117/12.46864
Show Author Affiliations
Kirill A. Prokhorov, General Physics Institute (Russia)
Alexander M. Prokhorov, General Physics Institute (Russia)
Merab I. Djibladze, Tbilisi State Univ. (Georgia)
George N. Kekelidze, Tbilisi State Univ. (Georgia)
Vladimir S. Gorelik, Lebedev Physical Institute (Russia)

Published in SPIE Proceedings Vol. 1501:
Advanced Laser Concepts and Applications
Sidney Singer, Editor(s)

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