Abstract
Conventional method for the precise determination of optical absorption coefficients of nonlinear-optical crystals is laser calorimetry [1]. It is based on measurements of the heating kinetics of air near crystal surface during and after laser irradiation. Both optical absorption α and heat transfer hT coefficients are then calculated by solving non-stationary heat conduction equation taking into account boundary conditions. However to the present day crystal temperature during interaction with laser radiation in such techniques is measured indirectly.
© 2013 IEEE
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