Abstract
Laser calorimetry is conventional method applied for optical absorption measurement in crystals. It is based on finding correspondence between solution of nonstationary heat conduction equation and temperature kinetics of the crystal measured during its heating by laser radiation [1]. To the present day crystal temperature is measured indirectly using external detectors that ought to be in good thermal contact with sample under test and also should not perturb natural cooling of the crystal. The main problem is that thus measured temperature cannot be identified with true temperature of the crystal. Due to the strong temperature gradient in air near crystal surface such detectors measure temperature in heat flow rather than in heat equilibrium condition.
© 2015 IEEE
PDF ArticleMore Like This
O. A. Ryabushkin, D. V. Myasnikov, A. V. Konyashkin, and O. I. Vershinin
CE_P_18 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2013
O. A. Ryabushkin, A. V. Konyashkin, and I. S. Ulyanov
JTh2A.3 CLEO: Applications and Technology (CLEO:A&T) 2014
A. I. Baranov, O. A. Ryabushkin, and A. V. Konyashkin
CE_P_23 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2015