摘要
本文给出了透明基体上的单层薄膜在激光辐照下的温度分布和光热形变偏转信号的理论表达式。通过数值计算,分析了偏转信号与薄膜参数、基体参数以及调制频率之间的关系,用反射式光热偏转装置对光学薄膜的光热偏转信号进行了实验研究。结果表明,理论计算和实验结果是一致的。
The theoretical expressions of the distribution of temperature and photothormal deformation deflection signal in optical coatings are given in this paper. The relations between deflection signal and parameters of coating, substrate and modulation frequency are analysed by numerical calculation. The experimental resultes are compared with theoretical calculation.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1991年第2期166-171,共6页
Acta Optica Sinica
关键词
光学薄膜
光热偏转
薄膜
热波探测
optical coating, Photo-thermal deflection, absorption.
