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Femtosecond time resolved coherent anti-Stokes Raman spectroscopy: Experiment and modelization of speed memory effects on mixtures in the collision regime
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10.1063/1.1894020
/content/aip/journal/jcp/122/19/10.1063/1.1894020
http://aip.metastore.ingenta.com/content/aip/journal/jcp/122/19/10.1063/1.1894020

Figures

Image of FIG. 1.
FIG. 1.

Broadening coefficient of line at 600 K (a) and of line at 900 K (b) of diluted in vs concentration. The collisional broadening coefficient using the linear mixing rule (broken line) is also reported for comparison [cf. Eq. (5)]. The dots represent the values of the broadening coefficients adjusted from experiments.

Image of FIG. 2.
FIG. 2.

Broadening coefficient of diluted in vs concentration calculated from kinetic impact equation [cf. Eqs. (7) and (8)] at 10 amagats. The dots correspond to the collisional broadening coefficient [cf. Eq. (5)]. (a) line at 600 K. , (⋯), (- - -), (– –), (—). (b) line at 900 K. , (⋯), (- - -), (– –), (—).

Image of FIG. 3.
FIG. 3.

CARS signal of 20% of diluted in 80% of at 900 K and 9.25 amagat. The broken line represents the experimental signal. The full line represents the signal adjusted by the Lorentzian model (a) and the signal adjusted using the KS-1D model with memory parameter (b).

Image of FIG. 4.
FIG. 4.

CARS signal of diluted in . The broken line represents the experimental signal. The full line represents the best signal adjusted using the KS-1D model. (a) CARS signal with 5% of diluted in 95% of at 600 K and 9.56 amagat. The value of the memory parameter is 0.90. (b) CARS signal with 50% of diluted in 50% of at 900 K and 9.34 amagat. The value of the memory parameter is 0.93.

Tables

Generic image for table
Table I.

Values of , , , and parameters for pure and infinitely diluted in [cf. Eq. (6)] for rovibrational lines .  and are in units of , in units of , and in .

Generic image for table
Table II.

Temperature measurements in the mixtures and . , reference temperature measured by a thermocouple; , temperature adjusted by the Lorentzian model with collisional line broadening and shifting [cf. Eqs. (1) and (5)]; , temperature adjusted by the Lorentzian model with inhomogeneous line broadening modelized by KS-1D model; , temperature adjusted by the KS-1D model [cf. Eqs. (7) and (20)]. Temperatures are expressed in kelvin (K); the values in parentheses are standard deviations.

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/content/aip/journal/jcp/122/19/10.1063/1.1894020
2005-05-18
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Femtosecond time resolved coherent anti-Stokes Raman spectroscopy: Experiment and modelization of speed memory effects on H2–N2 mixtures in the collision regime
http://aip.metastore.ingenta.com/content/aip/journal/jcp/122/19/10.1063/1.1894020
10.1063/1.1894020
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