TY - JOUR
T1 - Graphene-based plasmonic metamaterial for terahertz laser transistors
AU - Otsuji, Taiichi
AU - Boubanga-Tombet, Stephane Albon
AU - Satou, Akira
AU - Yadav, Deepika
AU - Fukidome, Hirokazu
AU - Watanabe, Takayuki
AU - Suemitsu, Tetsuya
AU - Dubinov, Alexander A.
AU - Popov, Vyacheslav V.
AU - Knap, Wojciech
AU - Kachorovskii, Valentin
AU - Narahara, Koichi
AU - Ryzhii, Maxim
AU - Mitin, Vladimir
AU - Shur, Michael S.
AU - Ryzhii, Victor
N1 - Funding Information:
Research funding: The part of the works primarily contributed by D.Y., A.S., T.W., M.R., V.R., and T.O. was financially supported by JSPS KAKENHI (#21H04546, #20K20349, #16K14243, #16H06361, and #23000008), Japan. The part of the works primarily contributed by V.R. was supported by the Russian Scientific Foundation (#14-29-00277). The part of the works by A.A.D. was supported by the Russian Foundation of the Basic Research (#20-52-50004). The part of the works by V.K. was supported by the Russian Foundation of the Basic Research (#20-02-00490А). The part of the works by V.V.P. was carried out within the framework of the state task. The part of the works by W.K. was carried out within the framework of the IRA-CENTERA project FNP.
Publisher Copyright:
© 2022 Taiichi Otsuji et al., published by De Gruyter, Berlin/Boston.
PY - 2022/4/1
Y1 - 2022/4/1
N2 - This paper reviews recent advances in the research and development of graphene-based plasmonic metamaterials for terahertz (THz) laser transistors. The authors' theoretical discovery on THz laser transistors in 2007 was realized as a distributed-feedback dual-gate graphene-channel field-effect transistor (DFB-DG-GFET) in 2018, demonstrating ∼0.1 μW single-mode emission at 5.2 THz and ∼80 μW amplified spontaneous 1-7.6 THz emission at 100 K. To realize room-temperature, dry-cell-battery operating intense THz lasing with fast direct modulation, various approaches based on graphene plasmonic metamaterials are investigated and introduced as real device implementations, including (i) replacement of the laser photonic cavity with plasmonic cavity enormously improving the THz photon field confinement with larger gain overlapping, (ii) introduction of THz amplification of stimulated emission via current-driven graphene Dirac plasmons (GDPs), and (iii) controlling the parity and time-reversal symmetry of GDPs enabling ultrafast direct gain-switch modulation. Possible real device structures and design constraints are discussed and addressed toward coherent light sources applicable to future 6G- and 7G-class THz wireless communication systems.
AB - This paper reviews recent advances in the research and development of graphene-based plasmonic metamaterials for terahertz (THz) laser transistors. The authors' theoretical discovery on THz laser transistors in 2007 was realized as a distributed-feedback dual-gate graphene-channel field-effect transistor (DFB-DG-GFET) in 2018, demonstrating ∼0.1 μW single-mode emission at 5.2 THz and ∼80 μW amplified spontaneous 1-7.6 THz emission at 100 K. To realize room-temperature, dry-cell-battery operating intense THz lasing with fast direct modulation, various approaches based on graphene plasmonic metamaterials are investigated and introduced as real device implementations, including (i) replacement of the laser photonic cavity with plasmonic cavity enormously improving the THz photon field confinement with larger gain overlapping, (ii) introduction of THz amplification of stimulated emission via current-driven graphene Dirac plasmons (GDPs), and (iii) controlling the parity and time-reversal symmetry of GDPs enabling ultrafast direct gain-switch modulation. Possible real device structures and design constraints are discussed and addressed toward coherent light sources applicable to future 6G- and 7G-class THz wireless communication systems.
KW - Dirac plasmons
KW - current injection pumping
KW - distributed-feedback
KW - dual-grating-gate
KW - graphene
KW - instability
KW - lasers
KW - metamaterial
KW - parity- and time-reversal symmetry
KW - terahertz
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U2 - 10.1515/nanoph-2021-0651
DO - 10.1515/nanoph-2021-0651
M3 - Review article
AN - SCOPUS:85124714937
SN - 2192-8606
VL - 11
SP - 1677
EP - 1696
JO - Nanophotonics
JF - Nanophotonics
IS - 9
ER -