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1 October 1991 Multiphoton excited emission in zinc selenide and other crystals
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Proceedings Volume 1501, Advanced Laser Concepts and Applications; (1991)
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands
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.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kirill A. Prokhorov, Alexander M. Prokhorov, Merab I. Djibladze, George N. Kekelidze, and Vladimir S. Gorelik "Multiphoton excited emission in zinc selenide and other crystals", Proc. SPIE 1501, Advanced Laser Concepts and Applications, (1 October 1991);

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