2013 Fiscal Year Final Research Report
Theoretical investigation on optical-induced coherent electron dynamics of chiral aromatic molecules
| Project/Area Number |
23550003
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Tohoku University |
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Principal Investigator |
FUJIMURA Yuichi 東北大学, 理学(系)研究科(研究院), 名誉教授 (90004473)
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| Project Period (FY) |
2011 – 2013
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| Keywords | キラリティー / 電子ダイナミクス / コヒーレンス / 環電流 / 誘起電磁場 / 超高速π電子回転 / 量子制御 / ビフェノール |
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| Research Abstract |
Pi-electrons in an aromatic ring chiral molecule can rotate clockwise or counterclockwise by applying a linearly polarized ultrashort laser pulse even though the electronic state has no degeneracy and no angular momentum character. We have proposed the principle of a multidimensional ultrashort-time switching device by laser control of pi-electron induced ring current and the current-induced magnetic field. (P)-2,2'-biphenol having two benzene rings was taken as a model chiral molecule. For practical use, we made simulations of time-dependent coherent ring currents by taking into account effects of interactions between pi-electron and molecular vibrations or heat bath modes in condensed phases.
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