Terahertz lasers based on optically pumped multiple graphene structures with slot-line and dielectric waveguides

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Authors
Ryzhii, V.
Dubinov, A. A.
Otsuji, T.
Mitin, V.
Shur, M. S.
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Abstract
Description
Terahertz (THz) lasers on optically pumped multiple-graphene-layer (MGL) structures as their active region are proposed and evaluated. The developed device model accounts for the interband and intraband transitions in the degenerate electron-hole plasma generated by optical radiation in the MGL structure and the losses in the slot or dielectric waveguide. The THz laser gain and the conditions of THz lasing are found. It is shown that the lasers under consideration can operate at frequencies > 1 THz at room temperatures.
Comment: 7 pages, 10 figures
Keywords
Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science
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