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Proceedings Paper

Vibrational Energy Relaxation In A Molecular Monolayer Measured By Picosecond Sum Spectroscopy
Author(s): A L Harris; N. J. Levinos
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Paper Abstract

Direct picosecond time-resolved measurements of vibrational energy relaxation for a molecular adsorbate at a bulk metal surface were made. Vibrational energy relaxation from ν=1 to ν==0 for C-H stretching modes of the terminal methyl group in a Cd stearate Langmuir-Blodgett monolayer on an evaporated silver film was measured using infrared-visible sum spectroscopy to dynamically probe vibrational level populations. Multicomponent decay processes with lifetimes of 3 ps to >1 ns indicate complex intramolecular vibrational energy transfer processes in these ordered monolayer films, which may be different in related polymer and molecular liquid systems.

Paper Details

Date Published: 15 August 1989
PDF: 7 pages
Proc. SPIE 1056, Photochemistry in Thin Films, (15 August 1989); doi: 10.1117/12.951617
Show Author Affiliations
A L Harris, AT&T Bell Laboratories (United States)
N. J. Levinos, AT&T Bell Laboratories (United States)

Published in SPIE Proceedings Vol. 1056:
Photochemistry in Thin Films
Thomas F. George, Editor(s)

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