Polarization-resolved ultrafast polarizability relaxation in polar aromatic liquids

Ismael A. Heisler; Stephen Meech

doi:10.1021/jp805862z

Polarization-resolved ultrafast polarizability relaxation in polar aromatic liquids

Ismael A. Heisler, Stephen Meech

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

20 Citations (Scopus)

Abstract

Ultrafast electron dynamics in 5 nm thick gold films have been investigated as a function of film morphology. The transient reflectivity data reveal a sub-100 fs rise time and a complex relaxation profile on the picosecond timescale. These data are discussed in terms of a modified two-temperature model of the electron dynamics accounting for the initial relaxation of the non-thermal population. The electron–phonon coupling may be sensitive to film morphology. The possible origin of this behaviour is discussed and results are placed in the context of enhanced photochemistry on thin metal films.

Original language	English
Pages (from-to)	12976-12984
Number of pages	9
Journal	The Journal of Physical Chemistry B
Volume	112
Issue number	41
DOIs	https://doi.org/10.1021/jp805862z
Publication status	Published - 2 Jul 2008

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10.1021/jp805862z

Cite this

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title = "Polarization-resolved ultrafast polarizability relaxation in polar aromatic liquids",

abstract = "Ultrafast electron dynamics in 5 nm thick gold films have been investigated as a function of film morphology. The transient reflectivity data reveal a sub-100 fs rise time and a complex relaxation profile on the picosecond timescale. These data are discussed in terms of a modified two-temperature model of the electron dynamics accounting for the initial relaxation of the non-thermal population. The electron–phonon coupling may be sensitive to film morphology. The possible origin of this behaviour is discussed and results are placed in the context of enhanced photochemistry on thin metal films.",

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AU - Heisler, Ismael A.

AU - Meech, Stephen

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N2 - Ultrafast electron dynamics in 5 nm thick gold films have been investigated as a function of film morphology. The transient reflectivity data reveal a sub-100 fs rise time and a complex relaxation profile on the picosecond timescale. These data are discussed in terms of a modified two-temperature model of the electron dynamics accounting for the initial relaxation of the non-thermal population. The electron–phonon coupling may be sensitive to film morphology. The possible origin of this behaviour is discussed and results are placed in the context of enhanced photochemistry on thin metal films.

AB - Ultrafast electron dynamics in 5 nm thick gold films have been investigated as a function of film morphology. The transient reflectivity data reveal a sub-100 fs rise time and a complex relaxation profile on the picosecond timescale. These data are discussed in terms of a modified two-temperature model of the electron dynamics accounting for the initial relaxation of the non-thermal population. The electron–phonon coupling may be sensitive to film morphology. The possible origin of this behaviour is discussed and results are placed in the context of enhanced photochemistry on thin metal films.

U2 - 10.1021/jp805862z

DO - 10.1021/jp805862z

M3 - Article

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SP - 12976

EP - 12984

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

SN - 1520-6106

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