@inproceedings{a0b6c4a273524a5eb8e9e7d7921c5035,
title = "Graphene-based van der Waals heterostructures towards a new type of terahertz quantum-cascade lasers",
abstract = "Current-injection pumping in graphene makes carrier population inversion enabling lasing and/or amplification of terahertz (THz) radiation. We have recently demonstrated single-mode THz lasing at 100K in graphene-channel transistor laser structures. Introduction of a gated double-graphene-layered (G-DGL) van der Waals heterostructure is a promising route to further increase the operation temperature and radiation intensity via plasmon- and/or photon-assisted quantummechanical tunneling. We have proposed a cascading of the G-DGL unit element working as a new type of THz quantumcascade lasers. Numerical analyses demonstrate further increase of the quantum efficiency of THz lasing by orders of magnitude compared to a transistor or single G-DGL structure.",
keywords = "Grapheme, Laser, Plasmon, Quantum cascade lasers, Terahertz, Tunneling, Van der Waals heterostructure",
author = "Takayuki Watanabe and Deepika Yadav and {Boubanga Tombet}, Stephane and Akira Satou and Dubinov, {Alexander A.} and Victor Ryzhii and Taiichi Otsuji",
note = "Funding Information: The authors thank D. Svintsov, A. Bylinkin, S. Arnold, G. Tamamushi, K. Sugawara, J. Mitsushio, Y. Tobah, T. Suemitsu, M. Ryzhii, H. Fukidome, K. Tashima, M. Suemitsu, V. Ya Aleshkin, V. Mitin, and M.S. Shur for their contributions. This work is financially supported by JSPS KAKENHI #16H06361, Japan.; Terahertz Emitters, Receivers, and Applications X 2019 ; Conference date: 11-08-2019 Through 13-08-2019",
year = "2019",
doi = "10.1117/12.2529016",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Manijeh Razeghi and Baranov, {Alexei N.} and Vitiello, {Miriam S.}",
booktitle = "Terahertz Emitters, Receivers, and Applications X",
}