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.

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收藏

页码：3330 / 3332

页数：3

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