Wavelength-tunable ultrashort-pulse output of a photonic-crystal fiber designed to resolve ultrafast molecular dynamics

被引：11
|
作者：
Ivanov, Anatoly A.
Alfiniov, Mikhail V.
Zheltikov, Aleksei M.
机构：
[1] Russian Acad Sci, Ctr Photochem, Moscow 117421, Russia
[2] Moscow MV Lomonosov State Univ, Dept Phys, Ctr Int Laser, Moscow 119992, Russia
来源：
OPTICS LETTERS | 2006年 / 31卷 / 22期
关键词：
D O I：
10.1364/OL.31.003330
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Wavelength-tunable 100 fs pulses generated through the soliton self-frequency shift in a photonic-crystal fiber are employed to visualize femtosecond coherence and population relaxation dynamics in molecular aggregates by means of time-resolved sum-frequency generation. This technique reveals an ultrafast dephasing of coherent molecular excitations with a phase relaxation time of about 120 fs and resolves an ultrafast switching of the nonlinear-optical response of molecular aggregates. (c) 2006 Optical Society of America.
引用
收藏
页码：3330 / 3332
页数：3
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