The spectral distribution of light scattered from methyl fluoride in the critical region |
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Authors: | S A R C Bominaar A C Michels S N Biswas |
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Institution: | Van der Waals laboratory , University of Amsterdam , Valckenierstraat 67, 1018 XE, Amsterdam, The Netherlands |
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Abstract: | Abstract The experimental data for the spectral distribution of light scattered from methyl fluoride in the critical region are collected and analysed for different polarization directions by means of a Fabry-Pérot etalon. The analysis reveals the presence of an unshifted Rayleigh line and two frequency shifted Brilllouin lines for polarized and depolarized intensities. The intensity ratio of these lines - the so-called Landau-Placzek ratio - is determined along the critical isochore and its divergence near the critical point is described by a power law expression. |
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Keywords: | Critical phenomena Landau-Placzek ratio depolarized light scattering methyl fluoride power laws |
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