| Project/Area Number |
26600051
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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 |
Nanomaterials engineering
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| Research Institution | NTT Basic Research Laboratories |
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Principal Investigator |
Suzuki Satoru 日本電信電話株式会社NTT物性科学基礎研究所, 機能物質科学研究部, 主任研究員 (00393744)
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| Co-Investigator(Kenkyū-buntansha) |
Hibino Hiroki 関西学院大学, 理工学部, 教授 (60393740)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | グラフェン / プラズモン / 反射率 / 吸収率 / 指向性 / テラヘルツ / 光学的異方性 / 八木・宇田アンテナ / 位相干渉効果 |
|---|
| Outline of Final Research Achievements |
Our simulations showed that high optical directivity for THz light was achieved from stacked graphene ribbons when the stacking structure was made slight asymmetric physically. The directivity was found to be due to the phasing effects like in a Yagi-Uda antenna. We also firstly succeeded in experimental observation of reflection and absorption spectra in the THz region of graphene plasmons. Absorption by confined intraband plasmons reached 5-10%/layer, which is considerably larger than the intraband absorption of 2.3%/layer.
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