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Broadening of vibration Q-bands in the Raman spectrum of carbon dioxide due to critical density fluctuations

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Abstract

Detailed analysis of CARS-spectroscopy experimental data of the carbon dioxide Fermi dyad showed that critical density variance should not exceed 0.1 and the lifetime of critical fluctuations is more than 10 ns. To interpret the experimental data, an original calculation of the critical fluctuation contribution to spectral line, considering the lifetime of critical fluctuations, was performed.

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Authors and Affiliations

  1. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, Russia

    Yu. A. Chaikina

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  1. Yu. A. Chaikina
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Correspondence to Yu. A. Chaikina.

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Original Russian Text © Yu.A. Chaikina, 2015, published in Sverkhkriticheskie Flyuidy. Teoriya i Praktika, 2015, Vol. 10, No. 1, pp. 19–33.

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Chaikina, Y.A. Broadening of vibration Q-bands in the Raman spectrum of carbon dioxide due to critical density fluctuations. Russ. J. Phys. Chem. B 10, 1039–1047 (2016). https://doi.org/10.1134/S1990793116070058

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  • DOI: https://doi.org/10.1134/S1990793116070058

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