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Femtosecond time resolved coherent anti-Stokes Raman spectroscopy of H2–N2 mixtures in the Dicke regime: Experiments and modeling of velocity effects

J. Chem. Phys. 131, 174310 (2009); doi:10.1063/1.3257640

Published 5 November 2009

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H. Tran,1 F. Chaussard,2 N. Le Cong,2 B. Lavorel,2 O. Faucher,2 and P. Joubert3
1Laboratoire Inter-universitaire des Systèmes Atmosphériques (LISA), UMR CNRS 7583, Universités Paris VII et Paris XII, 94010 Créteil Cedex, France
2Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR CNRS 5209, Université de Bourgogne, 9 Avenue Alain Savary, BP 47870, F-21078 Dijon Cedex, France
3Institut UTINAM, UMR CNRS 6213, Université de Franche-Comté, 25030 Besançon Cedex, France
In this paper, we present measurements and modeling of femtosecond time resolved coherent anti-Stokes Raman spectroscopy (CARS) signal in H2–N2 mixtures at low densities. Three approaches have been used to model the CARS response. The first is the usual sum of Voigt profiles. In the second approach, the speed dependent Voigt profile is used. In the last approach, a model of the temporal CARS signal is developed, which takes into account the velocity changes induced by collisions and the speed dependence of the collisional parameters. The velocity changes are modeled using the Keilson and Storer memory function; the radiator speed dependences of the collisional parameters are determined from their temperature dependences. The results obtained are consistent with previous studies in the frequency domain, showing that the changes of the velocity have important effects for the H2/N2 system in the Dicke narrowing density regime. ©2009 American Institute of Physics
History: Received 16 June 2009; accepted 7 October 2009; published 5 November 2009
Permalink: http://link.aip.org/link/?JCPSA6/131/174310/1
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KEYWORDS and PACS

Keywords
PACS
  • 33.20.Fb
    Raman and Rayleigh molecular spectra
  • 33.70.Jg
    Molecular line and band widths, shapes, and shifts
  • 06.60.Jn
    High-speed laboratory techniques (microsecond to femtosecond)
  • YEAR: 2009

PUBLICATION DATA

ISSN:
0021-9606 (print)   1089-7690 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (22)
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  1. B. Lavorel, H. Tran, E. Hertz, O. Faucher, P. Joubert, M. Motzkus, T. Buckup, T. Lang, H. Skenderovi, G. Knopp, P. Beaud, and H. M. Frey, C. R. Phys. 5, 215 (2004).
  2. R. L. Farrow, L. A. Rahn, G. O. Sitz, and G. J. Rosasco, Phys. Rev. Lett. 63, 746 (1989).
  3. J. Ph. Berger, R. Saint-Loup, H. Berger, J. Bonamy, and D. Robert, Phys. Rev. A 49, 3396 (1994).
  4. J. W. Forsman, J. Bonamy, D. Robert, J. Ph. Berger, R. Saint-Loup, and H. Berger, Phys. Rev. A 52, 2652 (1995).
  5. P. M. Sinclair, J. Ph. Berger, X. Michaut, R. Saint-Loup, R. Chaux, H. Berger, J. Bonamy, and D. Robert, Phys. Rev. A 54, 402 (1996).
  6. F. Chaussard, X. Michaut, R. Saint-Loup, H. Berger, P. Joubert, B. Lance, J. Bonamy, and D. Robert, J. Chem. Phys. 112, 158 (2000).
  7. F. Chaussard, R. Saint-Loup, H. Berger, P. Joubert, X. Bruet, J. Bonamy, and D. Robert, J. Chem. Phys. 113, 4951 (2000).
  8. P. Duggan, P. M. Sinclair, A. D. May, and J. R. Drummond, Phys. Rev. A 51, 218 (1995).
  9. F. Rohart, A. Ellendt, F. Kaghat, and H. Mader, J. Mol. Spectrosc. 185, 222 (1997).
  10. A. S. Pine and R. Ciurylo, J. Mol. Spectrosc. 208, 180 (2001).
  11. H. Tran, D. Bermejo, J. L. Domenech, P. Joubert, R. R. Gamache, and J. M. Hartmann, J. Quant. Spectrosc. Radiat. Transf. 108, 126 (2007).
  12. F. Rohart, G. Wlodarczak, J. M. Colmont, G. Cazzoli, L. Dore, and C. Puzzarini, J. Mol. Spectrosc. 251, 282 (2008).
  13. J. M. Hartmann, C. Boulet, and D. Robert, Collisional Effects on Molecular Spectra. Laboratory Experiments and Model, Consequences for Applications (Elsevier, Amsterdam, 2008).
  14. D. Robert and L. Bonamy, Eur. Phys. J. D 2, 245 (1998).
  15. L. Bonamy, H. Tran, P. Joubert, and D. Robert, Eur. Phys. J. D 31, 459 (2004).
  16. H. Tran, P. Joubert, L. Bonamy, B. Lavorel, V. Renard, F. Chaussard, O. Faucher, and B. Sinardet, J. Chem. Phys. 122, 194317 (2005).
  17. J. Keilson and J. E. Storer, Q. Appl. Math. 10, 243 (1952).
  18. G. Herzberg, Molecular Spectra and Molecular Structure: I. Spectra of Diatomic Molecules (Van Nostrand, New York, 1953).
  19. H. Tran and J. M. Hartmann, J. Chem. Phys. 130, 094301 (2009).
  20. R. F. Snider, Phys. Rev. A 33, 178 (1986).
  21. M. Abramowitz and I. A. Stegun, Handbook of Mathematical Functions (Dover, New York, 1970).
  22. P. Joubert, P. N. M. Hoang, L. Bonamy, and D. Robert, Phys. Rev. A 66, 042508 (2002).

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