DYNAMICS OF THE ABSORPTION RECOVERY OF DYES COMMONLY USED AS INTRACAVITY SATURABLE ABSORBERS IN SELF-STARTING PASSIVELY MODE-LOCKED TI-SAPPHIRE LASERS

被引:10
|
作者
GANIKHANOV, F [1 ]
HSIEH, JM [1 ]
PAN, CL [1 ]
机构
[1] NATL TSING HUA UNIV,INST ELECTROOPT ENGN,HSINCHU 300,TAIWAN
关键词
D O I
10.1016/0030-4018(94)00613-Y
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We report accurate, direct measurements of the absorption recovery lifetimes (fluorescence lifetimes, tau(f)) Of dyes which are commonly used as saturable absorbers in self-starting passively mode-locked Ti: sapphire lasers. The values tau(f) for IR 140, HITCI, and DDI dissolved in ethylene glycol are respectively 165 +/- 5 ps, 200 +/- 7 ps, and 27 +/- 0.5 ps. The femtosecond temporal resolution available in these measurements also made possible the determination, for the first time to our knowledge, of fast initial relaxation rates of the excited electronic band of these dyes.
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页码:289 / 294
页数:6
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