三种新激光染料的双光子吸收荧光和上转换激射  

Up-conversion Fluorescence and Lasing Properties of Three Novel Laser Dyes

作　　者：雷虹[1] 韦中超[1] 王筱梅[2] 方奇[2] 汪河洲[1] 

机构地区：[1]中山大学超快速激光光谱学国家重点实验室,广州510275 [2]山东大学晶体材料国家重点实验室,济南250100

出　　处：《中国激光》2001年第8期761-764,共4页Chinese Journal of Lasers

基　　金：国家重点基础研究规划项目;国家自然科学基金 (批准号 :1993 4 0 0 2和 19874 0 83 )资助项目

摘　　要：用实验方法研究了三种新激光染料PSPI,DEASPI和HEASPI的双光子吸收荧光和上转换激射。它们的二甲基酰胺溶液在锁模Nd∶YAG激光器 10 64nm红外光照射下 ,发射出很强的红色可见荧光和激射光。荧光峰值和激射波长分别位于～ 648nm和～ 62 4nm。实验测得DEASPI,PSPI和HEASPI的二甲基酰胺溶液的上转换激射效率高达 10 7% ,9 8%和 7 1%。The properties of two photon induced fluorescence and up conversion lasing of three novel laser dyes, PSPI, DEASPI and HEASPI, have been experimentally investigated. The above dyes emitted strong two photon induced fluorescence centred at ～640 nm and up conversion lasing at ～620 nm when pumped with 1064 nm mode locked Nd∶YAG laser. The output/input characteristics of the up conversion lasing were measured, and a high up conversion lasing efficiency of 10.7 for DEASPI, 9.8% for PSPI, and 7.1% for HEASPI have been obtained.

关 键 词：双光子吸收 上转换激射 激光染料 吸收荧光 

分 类 号：TN244[电子电信—物理电子学]