Creation of current-injection graphene terahertz plasmonic lasers
Project/Area Number |
17K14661
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Electron device/Electronic equipment
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Research Institution | Tohoku University |
Principal Investigator |
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Project Period (FY) |
2017-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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Keywords | テラヘルツ波 / テラヘルツ / グラフェン / フーリエ赤外分光計 / レーザー / 電子デバイス |
Outline of Final Research Achievements |
For the purpose to realize high quantum efficiency terahertz laser devices using graphene as a gain medium, high quality graphene, which is essential to improve operating temperature and radiation intensity, and its derived graphene channel transistors with dual grating gate structure were successfully fabricated. In parallel, as an alternative gain medium to monolayer graphene, double graphene layer structure was theoretically revealed to achieve large gain if it was cascaded.
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Academic Significance and Societal Importance of the Research Achievements |
本研究の対象であるグラフェントランジスタレーザーデバイスでは、新規材料であるグラフェンにおけるテラヘルツ帯利得を、新規構造である二重格子ゲート構造におけるプラズモン励起を利用することで桁違いに増強することが期待でき、その物理機構を明らかにするための基盤を本研究で築くことができた。本デバイスによって室温動作可能な高効率テラヘルツ発振が実現すれば、超高速無線通信など種々の産業応用が実現し、将来の情報通信技術・産業を飛躍的に発展させることが予想される。また、グラフェンを利用したTHzレーザー発振の実現・体系化により、応用量子光学と電子光学の融合発展が期待でき、そのインパクトは計り知れない。
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Report
(4 results)
Research Products
(26 results)
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[Journal Article] Terahertz light-emitting graphene-channel transistor toward single-mode lasing2018
Author(s)
Yadav Deepika, Tamamushi Gen, Watanabe Takayuki, Mitsushio Junki, Tobah Youssef, Sugawara Kenta, Dubinov Alexander A., Satou Akira, Ryzhii Maxim, Ryzhii Victor, Otsuji Taiichi
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Journal Title
Nanophotonics
Volume: 7
Issue: 4
Pages: 741-752
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] Terahertz photoluminescence from narrow gap HgTe/CdHgTe heterostructures and multilayer graphene2019
Author(s)
V.V. Utochkin, S.V. Morozov, M.A. Fadeev, V.V. Rumyantsev, N.N. Mikhailov, S.A. Dvoretsky, T. Komiyama, T. Watanabe, H. Fukidome, A. Satou, T. Otsuji
Organizer
RJUSE2019: 8th Russia-Japan-USA-Europe Symposium on Fundamental & Applied Problems of Terahertz Devices & Technologies, & GDR-I FIR-LAB Workshop
Related Report
Int'l Joint Research
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[Presentation] Emission and amplification of terahertz radiation using Dirac fermions and plasmons in graphene2018
Author(s)
T. Otsuji, D. Yadav, S. Boubanta-Tombet, T. Watanabe, A. Satou, A.A. Dubinov, M. Ryzhii, V.V. Popov, W. Knap, V. Mitin, M.S. Shur, and V. Ryzhii
Organizer
RJUSE: the 7th Russia-Japan-USA-Europe Symposium on Fundamental & Applied Problems of Terahertz Devices & Technologies
Related Report
Int'l Joint Research / Invited
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[Presentation] Terahertz light emitting transistor based on current inection dual-gate graphene-channel FET2017
Author(s)
D. Yadav, Y. Tobah, K. Sugawara, J. Mitsushio, G. Tamamushi, T. Watanabe, A.A. Dubinov, M. Ryzhii, V. Ryzhii, and T. Otsuji
Organizer
IRMMW-THz: 42nd International Conference on Infrared, Millimeter and Terahertz Waves
Related Report
Int'l Joint Research / Invited
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[Presentation] Terahertz light emission and lasing in graphene transistors under current-injection pumping2017
Author(s)
T. Otsuji, D. Yadav, T. Watanabe, S. Boubanga-Tombet, A. Satou, T. Suemitsu, V. Ryzhii, A.A. Dubinov, M. Ryzhii, V. Mitin, and M.S. Shur
Organizer
RJUSE TeraTech 2017: Russia-Japan-USA-Europe Symposium on Fundamental & Applied Problems of Terahertz Devices & Technologies
Related Report
Int'l Joint Research
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