2013 Fiscal Year Final Research Report
Study of coherent wave-packet dynamics using THz-domain modulation spectroscopy
| Project/Area Number |
23340087
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics I
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
MIZOGUCHI Kohji 大阪府立大学, 理学(系)研究科(研究院), 教授 (10202342)
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| Co-Investigator(Kenkyū-buntansha) |
KAWAI Taketoshi 大阪府立大学, 大学院・理学系研究科, 准教授 (00214586)
OOHATA Goro 大阪府立大学, 大学院・理学系研究科, 助教 (10464653)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 半導体微小共振器 / ラビ振動 / 光励起キャリア / コヒーレントフォノン |
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| Research Abstract |
We have investigated coherent phonons and Rabi oscillations resulting from quantum interference between two polariton states in semiconductor microcavities by using THz-domain modulation spectroscopy and pump-probe method, to clarify the dynamics of coherent wave packets generated in semiconductor nano-structure films. We demonstrate that short-lived Rabi oscillations and long-lived coherent phonons are coupled to each other through the polarization interaction between the excitonic components of polaritons and coherent phonon, and the coherent phonons are extremely enhanced by Rabi oscillations.
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