Photoinduced longitudinal electric field effect of the excitons in semiconductor quantum dots
| Project/Area Number |
23340083
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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 | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2011-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000)
Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2012: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2011: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
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| Keywords | 量子ドット / 縦電場効果 / 光誘起縦電場効果 / 光物性 / 半導体量子ドット / 量子エレクトロニクス |
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| Outline of Final Research Achievements |
The three-dimensional quantum confinement effect of the carriers in a semiconductor quantum dot gives the excitonic polarization the longitudinal component of the electric field, as well as the transverse component. The longitudinal component shifts the resonant frequency of the excitonic polarization, indicating that the resonant frequency of the excitonic polarization is modified by changing the excitation intensity and exhibiting a new optical effect. We studied the new optical effect arising from the photoinduced longitudinal component in a quantum dot by time-resolved spectroscopies and numerical calculations.
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Report
(4 results)
Research Products
(36 results)
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[Journal Article] Observation of bound and antibound states of cavity polariton pairs in a CuCl microcavity2014
Author(s)
S. Matsuura, Y. Mitsumori, H. Kosaka, K. Edamatsu, K. Miyazaki, D. Kim, M. Nakayama, G. Oohata, H. Oka, H. Ajiki, and H. Ishihara
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Journal Title
Phys. Rev. B
Volume: 89
Issue: 3
DOI
Related Report
Peer Reviewed
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