Ultrafast coherent dynamics of nonadiabatically coupled quasi-degenerate excited states in molecules: Population and vibrational coherence transfers

H. Mineo, M. Kanno, H. Kono, S. D. Chao, S. H. Lin, Y. Fujimura

研究成果: Article査読

11 被引用数 (Scopus)

抄録

Results of a theoretical study of ultrafast coherent dynamics of nonadiabatically coupled quasi-degenerate π-electronic excited states of molecules were presented. Analytical expressions for temporal behaviors of population and vibrational coherence were derived using a simplified model to clarify the quantum mechanical interferences between the two coherently excited electronic states, which appeared in the nuclear wavepacket simulations [M. Kanno, H. Kono, Y. Fujimura, S.H. Lin, Phys. Rev. Lett 104 (2010) 108302]. The photon-polarization direction of the linearly polarized laser, which controls the populations of the two quasi-degenerate electronic states, determines constructive or destructive interference. Features of the vibrational coherence transfer between the two coupled quasi-electronic states through nonadiabatic couplings are also presented. Information on both the transition frequency and nonadiabatic coupling matrix element between the two states can be obtained by analyzing signals of two kinds of quantum beats before and after transfer through nonadiabatic coupling.

本文言語English
ページ(範囲)136-142
ページ数7
ジャーナルChemical Physics
392
1
DOI
出版ステータスPublished - 2012 1 2

ASJC Scopus subject areas

  • 物理学および天文学(全般)
  • 物理化学および理論化学

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