@article{60d78f532a46454393a0e0e0c6afa0c4,
title = "Time delayed picosecond optical pulse transmission in liquid DODCI solutions",
abstract = "A broad anomalous increase in the optical transmission of DODCI dissolved in glycerine has been observed during the first 150 ps delay following intense optical excitation at 604 nm. The anomaly preceded a normal absorption recovery, and is ascribed to time-dependent interactions between the solvent and the excited states of the DODCI molecule.",
author = "Khoo, {I. C.} and Fuh, {Y. G.} and Code, {R. F.}",
note = "Funding Information: During the past few years, there has been considerable interest in the study \[1-6\]o f various optical and physical properties of a common mode-locking dye DODCI (3,3'-diethyloxadicarbocyanine iodide). For example, the determination of the excited state lifetimes has given rise to several reports of interesting and somewhat controversial behaviour. Recent studies \[5,6\]h, owever, indicate that the differences in the various lifetimes that have been measured may be explained by the influence of factors such as the due concentration, the specific solvent, and on the presence or absence of a short-lived excited state photoisomer. Mialocq et al. \[5\]h ave pointed out that photoisomers will not be present in DODCI solutions if single pulse excitation is used. Excitation by the entire picosecond pulse train from a flash-lamp pumped dye laser was demonstrated to favour photoisomer buildup. The absorption recovery time obtained in their single pulse pump-probe experiment agrees very well with the accepted results of Magde and Windsor \[3\]a, nd Shank and Ippen \[4\]. Mialocq's report also stated that they did not observe the nonlinear optical processes mentioned by Busch et al. such as stimulated emission or amplification. One must remark here that there is a basic dif- Research supported in part by grants from the Natural Sciences and Engineering Council of Canada. * Present address: Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48202, USA. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.",
year = "1980",
month = jan,
doi = "10.1016/0030-4018(80)90344-2",
language = "English (US)",
volume = "32",
pages = "191--194",
journal = "Optics Communications",
issn = "0030-4018",
publisher = "Elsevier",
number = "1",
}