摘要
围绕着激光预处理的增强机理和具体工艺，进行了小光斑扫描处理的实验探索，对０．５３２μｍ波长预处理的实验结果进行了分析，进一步证实了激光预处理对改善光学薄膜质量、提高光学薄膜损伤阈值的有效性和可行性，并从实验角度给予了一定的分析解释。
A significant limitation to the operating fluence (or peak power) of high peak power lasers is the laser induced damage threshold (LIDT) of optical components and optical coatings. A lot of work has been done to improve the LIDT of optical coatings in the past years, and recently, it is discovered that laser conditioning is a new technology to enhance laser resistance of the optical coatings. In this paper the latest experimental result from this group of laser conditioning of optical coatings at 532 nm is reported. The method utilized is the small laser spot scanning and the step by step energy raising. Coating samples, which were prepared with various deposition techniques, were conditioned. The effect of enhance of the laser resistance was shown in the great majority of the samples. The feasibility and effectiveness of the laser conditioning were confirmed. The possible mechanism of the laser conditioning was explained.
出处
《中国激光》
EI
CAS
CSCD
北大核心
1999年第8期763-767,共5页
Chinese Journal of Lasers
基金
浙江大学现代光学仪器国家重点实验室开放基金
关键词
光学薄膜
激光预处理
激光损伤阈值
小光斑扫描
optical coatings, laser conditioning, laser induced damage threshold (LIDT), small spot scanning
