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Effects of two-photon absorption on degenerate four-wave mixing in solutions of diphenyl polyenes

✍ Scribed by Fleitz, P. A.; Sutherland, R. L.; Natarajan, L. V.; Pottenger, T.; Fernelius, N. C.


Book ID
115419022
Publisher
Optical Society of America
Year
1992
Tongue
English
Weight
389 KB
Volume
17
Category
Article
ISSN
0146-9592

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Four-wave mixing (FWM) with two-photon absorption (TPA) resonances is shown to allow time-resolved studies of ultrafast processes involved in photochromism in three-dimensional spiropyran/PMMA samples on the femtosecond time scale. An FWM signal was produced using 130-fs pulses of 800-nm Ti:sapphire