A study of novel optical responses and enhancement of optical nonlinearities in carbon nanotubes by ultrafast laser spectroscopy
| Project/Area Number |
21340081
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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 | Nagoya University |
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Principal Investigator |
NAKAMURA Arao 名古屋大学, 工学研究科, 教授 (50159068)
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| Co-Investigator(Kenkyū-buntansha) |
KOYAMA Takeshi 名古屋大学, 工学研究科, 助教 (20509070)
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| Co-Investigator(Renkei-kenkyūsha) |
KISHIDA Hideo 名古屋大学, 工学研究科, 准教授 (40311633)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥19,890,000 (Direct Cost: ¥15,300,000、Indirect Cost: ¥4,590,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2009: ¥15,340,000 (Direct Cost: ¥11,800,000、Indirect Cost: ¥3,540,000)
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| Keywords | ナノチューブ / 光物性 / 非線形光学 / 励起子 / 金属内包フラーレン / フェムト秒分光 / 励起エネルギー移動 / 一次元励起子 / フラーレンピーポッド |
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| Research Abstract |
In metallic carbon nanotubes, we have succeeded to observe photoluminescence due to excitons with the lifetime of 40 fs. From femtosecond luminescence spectroscopy, the formation and relaxation times of trions in hole-doped semiconducting nanotubes are found to be 80 fs and 380 fs, respectively. In semiconducting carbon naotubes encapsulating metallofullerenes, a carrier doping effect from metallofullerenes to nanotubes is observed, and third-order nonlinear optical responses are investigated. We have also investigated exciton energy transfer between nanotubes in the femtosecond time region.
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Report
(4 results)
Research Products
(66 results)
