| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
In this study, for the realization of room-temperature operating terahertz plasmonic devices utilizing graphene plasmons, we theoretically verified device operation principles of plasmonic devices such as plasmon instabilities in asymmetric dual-grating-gate graphene transistors, interband population inversion in monolayer graphene, and resonant tunneling in double graphene layer. Especially, in the asymmetric dual-grating-gate graphene transistors, we demonstrated that a giant plasmon instability can take place due to the simultaneous occurrence of the so-called Dyakonov-Shur instability and Ryzhii-Satou-Shur instability.
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