Vibrational Energy Relaxation In A Molecular Monolayer Measured By Picosecond Sum Spectroscopy

A L Harris; N. J. Levinos

doi:10.1117/12.951617

15 August 1989 Vibrational Energy Relaxation In A Molecular Monolayer Measured By Picosecond Sum Spectroscopy

A L Harris, N. J. Levinos

Proceedings Volume 1056, Photochemistry in Thin Films; (1989) https://doi.org/10.1117/12.951617
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

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.

Citation Download Citation

A L Harris and N. J. Levinos "Vibrational Energy Relaxation In A Molecular Monolayer Measured By Picosecond Sum Spectroscopy", Proc. SPIE 1056, Photochemistry in Thin Films, (15 August 1989); https://doi.org/10.1117/12.951617

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