作　　者： ; ; ; ; ; ;

机构地区： 哈尔滨工业大学航天学院空间光学工程研究中心

出　　处： 《物理学报》 2008年第10期6360-6364,共5页

摘　　要： 本文从介质化学结构与受激布里渊散射(SBS)特性的关系入手,寻找出了SBS特性良好的全氟胺系列新介质——FC-131,FC-3283,FC-40,FC-43,FC-70等,并测定或计算出了新介质的SBS参数.结果表明,新介质的吸收系数均小于10-3cm-1,光学击穿阈值均高于100 GW/cm2.全氟胺系列新介质不仅具有良好的SBS特性,而且还具有无毒、低挥发性和高稳定性等一系列独特的物理化学性质.新介质的发现不仅增加SBS介质的种类,而且能够有效提高SBS系统的性能,对于SBS相位共轭镜在高功率激光系统中的应用打下了良好的基础. The stimulated Brillouin scattering （SBS） media perfluorinated amines with good SBS characteristics have been discovered based on the dependence of SBS characteristics on the chemical structures. The SBS parameters of perfluorinated amines such as FC-131, FC-3283, FC-40, FC-43 and FC-70 have been measured or calculated. The results demonstrate that their absorption coefficients are below 10^-3 cm^-1 and optical breakdown thresholds are above 100 GW/cm^2. The perfluorinated amines also exhibit a series of unique physicochemical properties, i.e., non-toxic property, low volatility, and high stability. The discovery not only diversifies the SBS media, but also improves the performance of SBS system, thereby laying a good foundation for the application of SBS phase conjugation mirror in high-power laser systems.

关 键 词： 受激布里渊散射 全氟胺 吸收系数 光学击穿阈值

领　　域： [机械工程] [理学] [理学] [电气工程] [一般工业技术]