Dynamical test of Davydov-type solitons in acetanilide using a picosecond free-electron laser

Wunshain Fann; Lewis Rothberg; Mark Roberson; Steve Benson; John Madey; Shahab Etemad; Robert Austin

doi:10.1103/PhysRevLett.64.607

Dynamical test of Davydov-type solitons in acetanilide using a picosecond free-electron laser

Wunshain Fann, Lewis Rothberg, Mark Roberson, Steve Benson, John Madey, Shahab Etemad, Robert Austin

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

53 Scopus citations

Abstract

Picosecond infrared excitation experiments on acetanilide, an -helix protein analog, indicate that the anomalous 1650-cm-1 band which appears on cooling of acetanilide crystals persists for at least several microseconds following rapid pulsed heating. The ground-state recovery time is 155 psec, consistent with a conventional mode strongly coupled to the phonon bath. We therefore suggest that the unusual temperature-dependent spectroscopy of acetanilide can be accounted for by slightly nondegenerate hydrogen atom configurations in the crystal.

Original language	English (US)
Pages (from-to)	607-610
Number of pages	4
Journal	Physical review letters
Volume	64
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.64.607
State	Published - 1990

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.64.607

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abstract = "Picosecond infrared excitation experiments on acetanilide, an -helix protein analog, indicate that the anomalous 1650-cm-1 band which appears on cooling of acetanilide crystals persists for at least several microseconds following rapid pulsed heating. The ground-state recovery time is 155 psec, consistent with a conventional mode strongly coupled to the phonon bath. We therefore suggest that the unusual temperature-dependent spectroscopy of acetanilide can be accounted for by slightly nondegenerate hydrogen atom configurations in the crystal.",

author = "Wunshain Fann and Lewis Rothberg and Mark Roberson and Steve Benson and John Madey and Shahab Etemad and Robert Austin",

year = "1990",

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T1 - Dynamical test of Davydov-type solitons in acetanilide using a picosecond free-electron laser

AU - Fann, Wunshain

AU - Rothberg, Lewis

AU - Roberson, Mark

AU - Benson, Steve

AU - Madey, John

AU - Etemad, Shahab

AU - Austin, Robert

PY - 1990

Y1 - 1990

N2 - Picosecond infrared excitation experiments on acetanilide, an -helix protein analog, indicate that the anomalous 1650-cm-1 band which appears on cooling of acetanilide crystals persists for at least several microseconds following rapid pulsed heating. The ground-state recovery time is 155 psec, consistent with a conventional mode strongly coupled to the phonon bath. We therefore suggest that the unusual temperature-dependent spectroscopy of acetanilide can be accounted for by slightly nondegenerate hydrogen atom configurations in the crystal.

AB - Picosecond infrared excitation experiments on acetanilide, an -helix protein analog, indicate that the anomalous 1650-cm-1 band which appears on cooling of acetanilide crystals persists for at least several microseconds following rapid pulsed heating. The ground-state recovery time is 155 psec, consistent with a conventional mode strongly coupled to the phonon bath. We therefore suggest that the unusual temperature-dependent spectroscopy of acetanilide can be accounted for by slightly nondegenerate hydrogen atom configurations in the crystal.

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Dynamical test of Davydov-type solitons in acetanilide using a picosecond free-electron laser

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