Characterization of optical coatings by photothermal deflection

被引：87

作者：

Commandre, M

Roche, P

机构：

[1] Laboratoire d’Optique des Surfaces et des Couches Minces, Unité Associée au Centre National de la Recherche Scientifique, Ecole Nationale Supérieure de Physique de Marseille, Domaine Universitaire de St. Jéräme, Marseille, 13397

来源：

APPLIED OPTICS | 1996年 / 35卷 / 25期

关键词：

optical coatings; photothermal deflection; calibration; absorption; local defects;

D O I：

10.1364/AO.35.005021

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An overview of photothermal deflection principles and applications is given. The modeling of temperature distribution and the calculation of deflection that is due to both the refractive-index gradient and the thermal deformation of the sample are presented. Three configurations usually employed are compared, and their respective advantages are discussed in relation to their application. The calibration for absolute measurement of absorption is detailed, showing that calibration limits the accuracy of measurement. Some examples of specific information obtained by photothermal mapping of absorption are given. (C) 1996 Optical Society of America

引用

页码：5021 / 5034

页数：14

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