Determination of collisional line broadening coefficients with femtosecond 
time-resolved CARS

Skenderovic, H.; Buckup, T.; Wohlleben, W.; Motzkus, M.

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Determination of collisional line broadening coefficients with femtosecond time-resolved CARS

Skenderovic, H., Buckup, T., Wohlleben, W., & Motzkus, M. (2002). Determination of collisional line broadening coefficients with femtosecond time-resolved CARS. Journal of Raman Spectroscopy, 33(11-12), 866-871. Retrieved from http://www3.interscience.wiley.com/cgi-bin/abstract/101521280/START.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-C1BD-B Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-C1BE-9

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Urheber:
Skenderovic, H.¹, Autor
Buckup, T.¹, Autor
Wohlleben, W.¹, Autor
Motzkus, M.¹, Autor

Affiliations:
1Laser Chemistry, Max Planck Institute of Quantum Optics, Max Planck Society, ou_1445565

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Zusammenfassung: The potential of femtosecond time-resolved CARS for the determination of J-dependent line broadening coefficients is demonstrated. With the well-developed femtosecond technique the line broadening coefficients of the H₂ Q-branch ro-vibrational transitions are measured in pure H₂ and in H₂ + He and H₂ + N₂ mixtures. The results for pure H₂ show excellent agreement with the values obtained by other groups using high-resolution CARS in the wavenumber domain. The dependence of the experimental broadening on perturber density also shows good agreement with the behavior of broadening found in the literature: a linear dependence in the case of hydrogen and helium as perturber and explicit nonlinear behavior in the case of nitrogen. The role of inhomogeneous broadening in time domain CARS is discussed. Copyright (C) 2002 John Wiley Sons, Ltd.