期刊
APPLIED PHYSICS LETTERS
卷 110, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4975829
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资金
- Russian Foundation for Basic Research [15-02-02989, 17-52-53063]
- Russian Federation [MK-5447.2016.2]
The plasmonic terahertz detection in a dual grating-gate graphene structure with an asymmetric unit cell is studied theoretically using a hydrodynamic approach. Two plasmonic effects of rectification of terahertz radiation-the differential plasmonic drag of charge carriers and the plasmonic electron-hole ratchet-are introduced and investigated. The plasmonic electron-hole ratchet effect appears only if the carriers of opposite signs are there in graphene under different subgratings of the dual grating gate. We demonstrate that the electron-hole ratchet effect dominates in the terahertz frequency range. Published by AIP Publishing.
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