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Semiconductor Physics, Quantum Electronics & Optoelectronics. 2005. V. 8, N 2. P. 051-057.
Effect of non-linear absorption on characteristics
of laser-induced luminescence
Taras Shevchenko Kyiv National University, Physics Department,
6, prospect Academician Glushkov, 03680 Kyiv, Ukraine;
E-mail: zele@univ.kiev.ua
Abstract. This paper deals with the methodology of laser-induced luminescence at high
excitation levels. For a case when a photodetector collects integral (over the volume)
luminescence power, a method is proposed for processing the experimentally-measured
luminescence power and optical transmittance as some functions of the incident laser
power. The method is based on the analysis of relative increments of luminescence and
transmitted laser power. Considered are two examples of mechanisms of non-linear laserinduced luminescence, namely: saturated molecular luminescence and luminescence
excited via two-photon absorption.
Keywords: luminescence, absorption, non-linearity, laser induction.
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