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Issue 9, 2011
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Enhancement of vibrational coherence by femtosecond degenerate four-wave-mixing for a chromophore in 1-propanol glass

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Abstract

The enhancement effect of vibrational coherence by femtosecond degenerate four-wave-mixing (DFWM) technique was investigated with a dye, NK-2990, doped in low temperature 1-propanol glass. The strongest enhancement was observed with the delay between the first and the second pulses, t13, set at about quarter of the oscillation period, which does not coincide with the theoretical prediction of half the period. One of the enhanced vibrational modes at ca. 90 cm−1 became significantly broader below the glass transition temperature, indicating its sensitivity towards microscopic viscosity of the environment.

Graphical abstract: Enhancement of vibrational coherence by femtosecond degenerate four-wave-mixing for a chromophore in 1-propanol glass

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Article information


Submitted
31 Jan 2011
Accepted
14 Mar 2011
First published
12 Apr 2011

Photochem. Photobiol. Sci., 2011,10, 1436-1440
Article type
Paper

Enhancement of vibrational coherence by femtosecond degenerate four-wave-mixing for a chromophore in 1-propanol glass

Y. Nagasawa, S. Ito, M. Muramatsu and H. Miyasaka, Photochem. Photobiol. Sci., 2011, 10, 1436
DOI: 10.1039/C1PP05048F

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