Ultrafast electronic relaxation and vibrational dynamics in a polyacetylene derivative

被引:4
|
作者
Kobayashi, Takayoshi [1 ,2 ,3 ]
Iiyama, Tsugumasa [1 ]
Okamura, Kotaro [1 ]
Du, Juan [1 ,2 ,4 ]
Masuda, Toshio [5 ]
机构
[1] Univ Electrocommun, Adv Ultrafast Laser Res Ctr, Chofu, Tokyo 1828585, Japan
[2] Japan Sci & Technol Agcy, CREST, Chiyoda Ku, Tokyo 1020076, Japan
[3] Natl Chiao Tung Univ, Dept Electrophys, Hsinchu 3005, Taiwan
[4] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China
[5] Fukui Univ Technol, Dept Environm & Biol Chem, Fac Engn, Fukui 9100505, Japan
关键词
OPTICAL PARAMETRIC AMPLIFICATION; LARGE MOLECULES; FEMTOSECOND; GENERATION; FS;
D O I
10.1016/j.cplett.2013.02.068
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Real-time vibrational spectra in a polyacetylene derivative, poly[o-TFMPA([o-(trifluoromethyl)phenyl]acetylene)] in a broad electronic spectral region were observed using a sub-7-fs laser. Using the frequencies and initial phases of vibrational modes obtained by the spectroscopy, the assignment of the wavepackets was made. From the first moment, Huang-Rhys parameters were determined for six most prominent modes, which characterize the potential hypersurface composed of multi-dimensional vibrational mode spaces. (C) 2013 Elsevier B. V. All rights reserved.
引用
收藏
页码:6 / 13
页数:8
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