2013 Fiscal Year Final Research Report
Control theory of nonadiabatic electron dynamics of aromatic molecules induced by ultrashort laser pulses
| Project/Area Number |
23750003
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Physical chemistry
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| Research Institution | Tohoku University |
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Principal Investigator |
KANNO Manabu 東北大学, 大学院理学研究科, 助教 (30598090)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 超短レーザーパルス / 偏光 / π電子系 / 環電流 / 非断熱ダイナミクス / 波束動力学計算 |
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| Research Abstract |
The control theory of nonadiabatically coupled pi-electron rotation (ring current) and molecular vibration in aromatic molecules irradiated by ultrashort laser pulses has been established. Theoretical and numerical analyses have revealed that it is possible to manipulate the interference between nuclear wave packets created on excited-state potential energy surfaces by a laser pulse of arbitrary polarization. In principle, the angular momentum (magnetic field) of pi electrons circulating along an aromatic ring and the amplitude of molecular vibration can be controlled as desired by means of ultrashort laser pulses. In addition, the frequency spectrum of photo-excited aromatic molecules depends significantly on laser polarization. This finding serves as a basis for rapid identification of molecular chirality.
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