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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/27650

Title: The ultrafast dynamics of liquid CBrCl3 studied with optical Kerr effect and Raman scattering
Authors: T.-H. Huang;C.-C. Hsu;T.-H. Wei;Michael Junn Chen;W.-S. Tse;H.-P. Chiang;C.-T. Kuo
Contributors: NTOU:Institute of Optoelectronic Sciences
Date: 1999
Issue Date: 2011-10-21T02:32:36Z
Publisher: Molecular Physics: An International Journal at the Interface Between Chemistry and Physics
Abstract: Abstract:The ultrafast inter- and intramolecular dynamics of liquid CBrCl3 are studied with a femtosecond laser in a pump/probe optical Kerr experiment. The prompt part of the observed Kerr signal is found to comprise not just electronic response but also coherent coupling. As reported in the literature, the weak and delayed part of the signal is attributed to three kinds of intermolecular dynamics: diffusive reorientation, polarizability distortion, and molecular libration with decay times, respectively, of 2 ps, 500 fs, and 190 fs. Included in the delayed Kerr signal are long lasting oscillations which are ascribed to quantum interference involving four normal vibrations of the molecule. By a careful fitting of both the time domain (Kerr) and frequency domain (Raman) data with existing theories the four vibrations are identified as ν2 = 422 cm−1, ν3 = 246 cm−1, ν5 = 295 cm−1, and ν6 = 191 cm−1, with dephasing times, 1.1 ps, 1.7 ps, 1 ps, and 1 ps, respectively.
Relation: 96(3), pp.389-396
URI: http://ntour.ntou.edu.tw/handle/987654321/27650
Appears in Collections:[光電科學研究所] 期刊論文

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