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Title: Superradiant amplification of terahertz radiation by plasmons in inverted graphene with a planar distributed Bragg resonator

It is shown theoretically that stimulated generation of terahertz radiation by plasmons in graphene with a planar distributed Bragg resonator is possible at two different frequencies for each plasmon mode. This behavior may be attributed to the superradiance of the collective plasmon mode, which is associated with superlinear increase in the radiative damping of the plasmons with increase in pumping power. As a result, the curves of the radiative damping and the plasmon gain as a function of the pumping power intersect at two points corresponding to different generation conditions.
Authors:
;  [1] ;  [2]
  1. Russian Academy of Sciences, Saratov Branch, Kotel’nikov Institute of Radioengineering and Electronics (Russian Federation)
  2. Tohoku University, Research Institute for Electrical Communication (Japan)
Publication Date:
OSTI Identifier:
22469694
Resource Type:
Journal Article
Resource Relation:
Journal Name: Semiconductors; Journal Volume: 49; Journal Issue: 11; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DAMPING; DIAGRAMS; GAIN; GRAPHENE; PLASMONS; PUMPING; RESONATORS; SUPERRADIANCE; THZ RANGE