Femtosecond pulse duration measurement by two-photon fluorescence detection

被引：7
|
作者：
Lammel, O [1 ]
Penzkofer, A [1 ]
机构：
[1] Univ Regensburg, Inst Expt & Angew Phys 2, D-93040 Regensburg, Germany
来源：
OPTICAL AND QUANTUM ELECTRONICS | 2000年 / 32卷 / 10期
关键词：
autocorrelator; femtosecond pulses; pulse duration measurement; rhodamine; 6G; Ti : sapphire laser; two-photon absorption; two-photon fluorescence;
D O I：
10.1023/A:1007076703519
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The two-photon absorption induced fluorescence in a methanolic rhodamine 6G solution is used to measure the pulse duration of a cw femtosecond Kerr-lens mode-locked Ti:sapphire laser by a Michelson-interferometer-type autocorrelator arrangement. Interference-free autocorrelation traces are obtained by correlating perpendicular polarized pulses. The two-photon polarization parameter of rhodamine 6G is determined by contrast ratio measurement. The time resolution limits are discussed.
引用
收藏
页码：1147 / 1160
页数：14
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