Nonlinear properties of gated graphene in a strong electromagnetic field
Date
2017ISSN
1063-7788Source
Physics of Atomic NucleiVolume
80Issue
2Pages
307-314Google Scholar check
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We develop a microscopic theory of a strong electromagnetic field interaction with gated bilayer graphene. Quantum kinetic equations for density matrix are obtained using a tight binding approach within second quantized Hamiltonian in an intense laser field. We show that adiabatically changing the gate potentials with time may produce (at resonant photon energy) a full inversion of the electron population with high density between valence and conduction bands. In the linear regime, excitonic absorption of an electromagnetic radiation in a graphene monolayer with opened energy gap is also studied. © 2017, Pleiades Publishing, Ltd.