Abstract
Wavelength-tunable 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 and resolves an ultrafast switching of the nonlinear-optical response of molecular aggregates.
© 2006 Optical Society of America
Full Article | PDF ArticleMore Like This
A. A. Ivanov, A. A. Podshivalov, and A. M. Zheltikov
Opt. Lett. 31(22) 3318-3320 (2006)
Dmitrii A. Sidorov-Biryukov, Evgenii E. Serebryannikov, and Aleksei M. Zheltikov
Opt. Lett. 31(15) 2323-2325 (2006)
A. B. Fedotov, A. A. Voronin, I. V. Fedotov, A. A. Ivanov, and A. M. Zheltikov
Opt. Lett. 34(6) 851-853 (2009)