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Prog. Theor. Phys. Supplement No.126 (1997) pp. 253-256
Brillouin Scattering Study of Glass-Forming Liquid with Simple Structure Using Angular Dispersion Fabry-Perot Interferometer
Shin-ichi Itoh,
Yoshiyuki Katoh,
Takaaki Kobayashi,
Genzou Matsui* and
Seiji Kojima**
Faculty of Engineering, Tokyo Institute of Polytechnins,
Atsugi, Kanagawa 243-02, Japan
*KIYOHARA OPTICS Inc., Shinjuku 6-23-2, Tokyo 160, Japan
**Institute of Applied Physics, University of Tsukuba, Tsukuba
305, Japan
Abstract:
Brillouin scattering of deuterized ethylene glycol was measured from
216 K to 405 K and dielectric measurement was done from 150 K to 215
K. To avoid crystallization and evaporation, the quick measurement
of Brillouin scattering was done for about one hour by using angular dispersion
Fabry-Perot interferometer system. The observed Brillouin spectra
are analyzed by a single relaxation model. The determined relaxation frequency
obeys the Arrhenius law and due to the fast relaxation process comparison
with the α-process observed by the dielectric measurement.
URL :
http://ptp.ipap.jp/link?PTPS/126/253/
DOI : 10.1143/PTPS.126.253
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