Spectrally-resolved transient grating signals from β-carotene in benzene solution

Mitsuru Sugisaki; Masazumi Fujiwara; Selvakumar V. Nair; Harry E. Ruda; Richard J. Cogdell; Hideki Hashimoto

doi:10.1002/pssc.200881344

Spectrally-resolved transient grating signals from β-carotene in benzene solution

Mitsuru Sugisaki, Masazumi Fujiwara, Selvakumar V. Nair, Harry E. Ruda, Richard J. Cogdell, Hideki Hashimoto

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

1 Citation (Scopus)

Abstract

The vibronic coherence of β-carotene in benzene has been investigated by means of transient grating spectroscopy using sub 20-fs optical pulses. The coherent oscillations with a period of a few tens of femtoseconds have been clearly observed, which reflect the C-C and C=C stretching modes and the C-CH₃ rocking mode of the polyene backbone. We found that the signal is very sensitive to the excitation wavelength. Calculations based on a Brownian oscillator model were performed. We show that the experimental results are well explained by properly considering the excitation pulse shapes.

Original language	English
Pages (from-to)	S34-S37
Journal	Physica Status Solidi (C) Current Topics in Solid State Physics
Volume	6
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1002/pssc.200881344
Publication status	Published - 2009
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

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title = "Spectrally-resolved transient grating signals from β-carotene in benzene solution",

abstract = "The vibronic coherence of β-carotene in benzene has been investigated by means of transient grating spectroscopy using sub 20-fs optical pulses. The coherent oscillations with a period of a few tens of femtoseconds have been clearly observed, which reflect the C-C and C=C stretching modes and the C-CH3 rocking mode of the polyene backbone. We found that the signal is very sensitive to the excitation wavelength. Calculations based on a Brownian oscillator model were performed. We show that the experimental results are well explained by properly considering the excitation pulse shapes.",

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doi = "10.1002/pssc.200881344",

language = "English",

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AU - Sugisaki, Mitsuru

AU - Fujiwara, Masazumi

AU - Nair, Selvakumar V.

AU - Ruda, Harry E.

AU - Cogdell, Richard J.

AU - Hashimoto, Hideki

PY - 2009

Y1 - 2009

N2 - The vibronic coherence of β-carotene in benzene has been investigated by means of transient grating spectroscopy using sub 20-fs optical pulses. The coherent oscillations with a period of a few tens of femtoseconds have been clearly observed, which reflect the C-C and C=C stretching modes and the C-CH3 rocking mode of the polyene backbone. We found that the signal is very sensitive to the excitation wavelength. Calculations based on a Brownian oscillator model were performed. We show that the experimental results are well explained by properly considering the excitation pulse shapes.

AB - The vibronic coherence of β-carotene in benzene has been investigated by means of transient grating spectroscopy using sub 20-fs optical pulses. The coherent oscillations with a period of a few tens of femtoseconds have been clearly observed, which reflect the C-C and C=C stretching modes and the C-CH3 rocking mode of the polyene backbone. We found that the signal is very sensitive to the excitation wavelength. Calculations based on a Brownian oscillator model were performed. We show that the experimental results are well explained by properly considering the excitation pulse shapes.

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ER -

Spectrally-resolved transient grating signals from β-carotene in benzene solution

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