Dependence of line shapes in femtosecond broadband stimulated Raman spectroscopy on pump-probe time delay.

Dependence of line shapes in femtosecond broadband stimulated Raman spectroscopy on pump-probe time delay. Research Abstract Details 

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Dependence of line shapes in femtosecond broadband stimulated Raman spectroscopy on pump-probe time delay. Abstract Text:

Sangwoon Yoon,David W McCamant,Philipp Kukura,Richard A Mathies,Donghui Zhang,Soo-Y Lee,

The effect of the time delay between the picosecond Raman pump and the femtosecond Stokes probe pulse on the Raman gain line shape in femtosecond broadband stimulated Raman spectroscopy (FSRS) is presented. Experimental data are obtained for cyclohexane to investigate the dependence of the FSRS line shape on this time delay. Theoretical simulations of the line shapes as a function of the time delay using the coupled wave theory agree well with experimental data, recovering broad line shapes at positive time delays and narrower bands with small Raman loss side wings at negative time delays. The analysis yields the lower bounds of the vibrational dephasing times of 2.0 ps and 0.65 ps for the 802 and 1027 cm(-1) modes for cyclohexane, respectively. The theoretical description and simulation using the coupled wave theory are also consistent with the observed Raman gain intensity profile over time delay, reaching the maximum at a slightly negative time delay (approximately -1 ps), and show that the coupled wave theory is a good model for describing FSRS.

Dependence of line shapes in femtosecond broadband stimulated Raman spectroscopy on pump-probe time delay. Publishing Authors By Initials

S Yoon,DW McCamant,P Kukura,RA Mathies,D Zhang,SY Lee,

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Dependence of line shapes in femtosecond broadband stimulated Raman spectroscopy on pump-probe time delay. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: The Journal of chemical physics

VOLUME: 122

Page Numbers: 024505

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ISSN: 0021-9606

DAY: 8

MONTH: Jan

YEAR: 2005

Dependence of line shapes in femtosecond broadband stimulated Raman spectroscopy on pump-probe time delay. Information

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LANGUAGE: eng

NlmUniqueID: 375360

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Grant and Affiliation Information for Dependence of line shapes in femtosecond broadband stimulated Raman spectroscopy on pump-probe time delay.

AFFILIATION: Department of Chemistry, University of California, Berkeley, California 94720, USA.

Country: United States

AGENCY: United States NEI

GRANT: R01 EY002051-29

ACRONYM: EY

MEDLINETA: J Chem Phys

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