2017 Fiscal Year Final Research Report
Theoretical study of the conversion mechanism between infrared incoherent sunlight and visible coherent light
| Project/Area Number |
15K13505
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics I
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| Research Institution | Osaka University (2017)
Osaka Prefecture University (2015-2016) |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 光アンテナ / 波長変換 / 局在プラズモン / コヒーレント光 / 超蛍光 |
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| Outline of Final Research Achievements |
The purpose of this study is to theoretically demonstrate a coherent emission of visible light associated with up-conversion of the incoherent infrared sunlight by using quantum mechanical coupling of optical antennas and molecules. Base on this purpose, we have obtained the following results: Rapid truncation of incident light after the continuous excitation of molecules (that are coupled with the antenna), the up-converted photo-emission occurs from the inversely populated molecules. If the number of molecules is large enough, the emission becomes superfluorescence; namely, the coherent light is emitted, which indicates our achievement of purpose. Further, we have successfully developed a new theoretical method to study the cooperative emission from the spatially dispersed molecular ensemble in the geometrically designed mediators.
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| Free Research Field |
光物性理論、非線形光学理論、量子光学理論
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