Exciton-exciton annihilation and photon correlation in suspended carbon nanotubes
| Project/Area Number |
26610080
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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 | Institute of Physical and Chemical Research (2016)
The University of Tokyo (2014-2015) |
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Principal Investigator |
KATO Yuichiro 国立研究開発法人理化学研究所, 加藤ナノ量子フォトニクス研究室, 准主任研究員 (60451788)
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| Co-Investigator(Kenkyū-buntansha) |
嶋田 行志 東京大学, 大学院工学系研究科(工学部), 助教 (20466775)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | ナノチューブ・フラーレン / 光物性 / 物性実験 |
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| Outline of Final Research Achievements |
Photoluminescence spectroscopy and photon correlation measurements were performed on individual air-suspended carbon nanotubes. Quantitative understanding of exciton-exciton-annihilation process was obtained and the possibility of room-temperature single-photon emission was examined. Effects of suspended length, chirality, and excitation power were investigated and compared with simulation results. Exciton-exciton annihilation rates were found to scale with the third power of exciton density, which is a unique characteristics of one-dimensional systems. Second order photon correlation below 0.5 was observed at room temperature, confirming the generation of single photons.
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Report
(4 results)
Research Products
(60 results)
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[Presentation] Ultralow mode-volume photonic crystal nanobeam cavities for high-efficiency coupling to individual carbon nanotube emitters2015
Author(s)
H. Machiya, R. Miura, S. Imamura, R. Ohta, A. Ishii, X. Liu, T. Shimada, S. Iwamoto, Y. Arakawa, Y. K. Kato
Organizer
The 48th Fullerenes-Nanotubes-Graphene General Symposium
Place of Presentation
The University of Tokyo, Tokyo, Japan
Year and Date
2015-02-23
Related Report
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