標題: Correlations of instantaneous transition energy and intensity of absorption peaks during molecular vibration: toward potential hyper-surface
作者: Kobayashi, Takayoshi
Wang, Zhuan
電子物理學系
Department of Electrophysics
公開日期: 30-Jun-2008
摘要: Time-resolved spectrum after ultrashort pulse excitation revealed fine structure of instantaneous vibronic absorption spectra in a thiophene derivative. The probe photon energy-dependent amplitudes of molecular vibration coupled to the induced absorption were composed of several peaks. An absorbance-change peak-tracking method revealed four vibronic transitions buried in the time-integrated spectra over several vibrational periods of typical molecular vibration. Four vibronic transitions located at 2.024, 1.921, 1.818 and 1.731 eV were found to be correlated among themselves with respect to the photon energies and intensities of the peaks in the difference absorbance change spectra. From the size and sign of the correlation strengths the mechanism of the vibronic coupling was related to non-Condon mechanism and Herzberg-Teller vibronic coupling.
URI: http://dx.doi.org/10.1088/1367-2630/10/6/065015
http://hdl.handle.net/11536/8696
ISSN: 1367-2630
DOI: 10.1088/1367-2630/10/6/065015
期刊: NEW JOURNAL OF PHYSICS
Volume: 10
Issue: 
結束頁: 
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