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Scientific article
English

Exploring liquid-liquid interfaces with transient evanescent grating techniques

Published inReview of scientific instruments, vol. 74, no. 1, p. 725-728
Publication date2003
Abstract

A transient grating setup with evanescent wave probing has been developed to investigate ultrafast processes at liquid–liquid interfaces. In order to evaluate the selectivity of this method to the interface, the speed of sound in the low refractive index medium has been measured as a function of the penetration depth of the probe pulse. Our preliminary results indicate an increase of the speed of sound in methanol with decreasing the probe depth from 100 to 70 nm. However, no correlation was found in acetonitrile in the same range. Modifications of the experiment for improving the selectivity to the interface are proposed.

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Citation (ISO format)
BRODARD, Pierre, VAUTHEY, Eric. Exploring liquid-liquid interfaces with transient evanescent grating techniques. In: Review of scientific instruments, 2003, vol. 74, n° 1, p. 725–728. doi: 10.1063/1.1517736
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ISSN of the journal0034-6748
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Creation09/21/2009 4:22:10 PM
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