Vibrational energy relaxation in a molecular monolayer measured by picosecond sum spectroscopy

Alex Harris; N. J. Levinos

doi:10.1117/12.951617

Vibrational energy relaxation in a molecular monolayer measured by picosecond sum spectroscopy

Alex Harris, N. J. Levinos

Brookhaven National Laboratory

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

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.

Original language	English
Pages (from-to)	66-72
Number of pages	7
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	1056
DOIs	https://doi.org/10.1117/12.951617
Publication status	Published - Aug 15 1989

ASJC Scopus subject areas

Applied Mathematics
Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering
Computer Science Applications

Access to Document

10.1117/12.951617

Fingerprint Dive into the research topics of 'Vibrational energy relaxation in a molecular monolayer measured by picosecond sum spectroscopy'. Together they form a unique fingerprint.

Cite this

@article{1de94a400c3d406c8b0074b8d3b93df2,

title = "Vibrational energy relaxation in a molecular monolayer measured by picosecond sum spectroscopy",

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.",

author = "Alex Harris and Levinos, {N. J.}",

year = "1989",

month = aug,

day = "15",

doi = "10.1117/12.951617",

language = "English",

volume = "1056",

pages = "66--72",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

}

TY - JOUR

T1 - Vibrational energy relaxation in a molecular monolayer measured by picosecond sum spectroscopy

AU - Harris, Alex

AU - Levinos, N. J.

PY - 1989/8/15

Y1 - 1989/8/15

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84953820392&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84953820392&partnerID=8YFLogxK

U2 - 10.1117/12.951617

DO - 10.1117/12.951617

M3 - Article

AN - SCOPUS:84953820392

VL - 1056

SP - 66

EP - 72

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

SN - 0277-786X

ER -

Vibrational energy relaxation in a molecular monolayer measured by picosecond sum spectroscopy

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Cite this