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
Temperature-dependent vibrational dephasing in molecular crystals: a picosecond cars study of naphthalene
โ Scribed by Dana D. Dlott; Claire L. Schosser; Eric L. Chronister
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 446 KB
- Volume
- 90
- Category
- Article
- ISSN
- 0009-2614
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๐ SIMILAR VOLUMES
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
Picosecond delayed CARS experunents have been used to measure the hfetunes of the lcwcr energy iibrons III naphthalene At 15 K llfetimes of 225 + 10 ps for the Bg liiron (57 5 cm-') and 141 f 10 ps for the Ag hiron (69 cm-') are obtamed. From the temperature dependence of the liiron hfetunes we conc
Resonance Raman suttermg IS used to mvcstigate vrbrational dephasing m the mwd crystal of pcntawnc m nrphtha[enc. It IS shown that, as for the pure electronic tratwtion, unconekaed resonant phonon scattenng proccsscs in the ground and ~rbratlonally ewed state induce nbrational dcphaing in th& syste