Zobrazeno 1 - 10
of 924
pro vyhledávání: '"A, Avetissian"'
In this work, we present a microscopic quantum theory that elucidates the nonlinear-nonperturbative optical response of biased bilayer graphene subjected to a bichromatic strong laser fields. This response is analyzed using a four-band Hamiltonian de
Externí odkaz:
http://arxiv.org/abs/2409.06269
This article aims to study the linear and nonlinear optical response of inversion symmetric graphene quantum dots (GQDs) in the presence of on-site disorder or vacancies. The presence of disorder or vacancy breaks the special inversion symmetry leadi
Externí odkaz:
http://arxiv.org/abs/2310.16596
In this work the extreme nonlinear optical response of a giant fullerene molecule C$_{240}$ in strong laser field is studied. The investigation of high-order harmonic generation in such quantum nanostructure is presented modeling the C$_{240}$ molecu
Externí odkaz:
http://arxiv.org/abs/2309.07831
This paper focuses on investigating high-order harmonic generation (HHG) in graphene quantum dots (GQDs) under intense near-infrared laser fields. To model the GQD and its interaction with the laser field, we utilize a mean-field approach. Our analys
Externí odkaz:
http://arxiv.org/abs/2305.14034
The objective of this article is to investigate the profound nonlinear optical response exhibited by inversion symmetric fullerene molecules under the influence of different types of disorders described by the Anderson model. Our aim is to elucidate
Externí odkaz:
http://arxiv.org/abs/2304.04208
We consider coherent dynamics of graphene charged carriers exposed to an intense few-cycle linearly polarized laser pulse. The results, obtained by solving the generalized semiconductor Bloch equations numerically in the Hartree-Fock approximation, t
Externí odkaz:
http://arxiv.org/abs/2304.02320
In this paper, the nonlinear interaction of Weyl semimetal (WSM) with a strong driving electromagnetic wave-field is investigated. In the scope of the structure-gauge invariant low-energy nonlinear electrodynamic theory, the polarization-resolved hig
Externí odkaz:
http://arxiv.org/abs/2206.10030
The disclosure of basic nonlinear optical properties of graphene-like nanostructures with correlated electron-hole nonlinear dynamics over a wide range of frequencies and pump field intensities is of great importance for both graphene fundamental phy
Externí odkaz:
http://arxiv.org/abs/2202.00289
Efficient high-harmonic generation in graphene with two-color laser field at orthogonal polarization
High-order frequency mixing in graphene using a two-color radiation field consisting of the fundamental and the second harmonic fields of an ultrashort linearly polarized laser pulse is studied. It is shown that the harmonics originated from the inte
Externí odkaz:
http://arxiv.org/abs/2201.10670
Publikováno v:
Phys. Rev. B 104, 125436 (2021)
Using dynamical Hartree-Fock mean-field theory, we study the high-harmonic generation (HHG) in the fullerene molecules C$_{60}$ and C$_{70}$ under strong pump wave driving. We consider a strong-field regime and show that the output harmonic radiation
Externí odkaz:
http://arxiv.org/abs/2108.05352