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A study of vibrational and librational dynamics in molecular crystals by picosecond cars

✍ Scribed by Douwe A. Wiersma

Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
91 KB
Volume
24-25
Category
Article
ISSN
0022-2313

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Temperature-dependent dephasing of 511, 766 and 1385 cm-' modes in the mixed crystals of naphthalene and perdeuteronaphthalene at various isotopic levels have been studied by picosecond CARS in the region of 6-130 K. In general, adding the isotope shows a significant effect on the low-temperature de

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Picosecond delayed CARS expenments on totally symmetric modes in naphthalene at 1.5 K are reported. The Raman hneshape of the vlbratlonal excltons 1s lorentzm and viirahonal relaxation can be surpnsingly slow. The Raman lineshape of the Ag exclton level of the 766 cm-' vlbrahonal mode reveals that t