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18 November 2019 Microscopic nonlinear quantum theory of absorption of coherent electromagnetic radiation in doped bilayer graphene
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Abstract

The microscopic quantum theory of nonlinear stimulated scattering of chiral particles in doped AB-stacked bilayer graphene on the Coulomb field of charged impurities in the presence of coherent electromagnetic radiation is presented. The Liouville–von Neumann equation for the density matrix is solved analytically. Here, the interaction of electrons with the scattering potential is taken into account as a perturbation. The absorption rate of nonlinear inverse-bremsstrahlung for a grand canonical ensemble of fermionic chiral particles is calculated using the obtained solution. The analysis of the obtained rate shows that from terahertz to the midinfrared range of frequencies there is significant absorption of incident radiation via multiphoton-stimulated bremsstrahlung mechanism.

© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE) 1934-2608/2019/$28.00 © 2019 SPIE
Armenhui G. Ghazaryan and Khachik V. Sedrakian "Microscopic nonlinear quantum theory of absorption of coherent electromagnetic radiation in doped bilayer graphene," Journal of Nanophotonics 13(4), 046008 (18 November 2019). https://doi.org/10.1117/1.JNP.13.046008
Received: 22 July 2019; Accepted: 30 October 2019; Published: 18 November 2019
JOURNAL ARTICLE
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