Two-photon excitation of dyes in a polymer matrix by ferntosecond pulses from a Ti: sapphire laser

被引：7
作者：
Meshalkin, YP
Svetlichnyi, VA
Reznichenko, AV
Myachin, AY
Bakhareva, SS
Dolotov, SM
Kopylova, TN
Ponomarenko, EP
机构：
[1] Novosibirsk Photodynam Res Ctr, Novosibirsk 630117, Russia
[2] VD Kuznetsov Siberian Phys Tech Inst, Tomsk 634050, Russia
[3] Alfa Akonis Sci Ind Firm, Dolgoprudnyi 141700, Russia
来源：
QUANTUM ELECTRONICS | 2003年 / 33卷 / 09期
关键词：
D O I：
10.1070/QE2003v033n09ABEH002502
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：
Two-photon fluorescence was observed for 18 organic dyes in a polymethyl methacrylate (PMMA) matrix excited by a femtosecond Ti:sapphire laser. The product of the cross section for two-photon absorption by the quantum yield of fluorescence (two-photon fluorescence cross section) is estimated by comparing it with fluorescence of Rhodamine 6G in ethanol. Using this parameter, dyes are selected that exhibit the most intense fluorescence in PMMA and their concentrations in PMMA are optimised. Coumarin and rhodamine dyes in polymer matrices are proposed for using as visualisers of femtosecond radiation of a Ti:sapphire laser and as detectors in self-triggering systems.
引用
收藏
页码：803 / 806
页数：4
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