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Konobeeva N.N.,Volgograd State University | Belonenko M.B.,Volgograd Institute of Business
Physics of the Solid State | Year: 2013

The wave equation for the electromagnetic field propagating in chiral carbon nanotubes has been analyzed. The phenomenological equation similar to the sine-Gordon equation has been derived. The dynamics of the electromagnetic pulse has been investigated. © 2013 Pleiades Publishing, Ltd. Source


Konobeeva N.N.,Volgograd State University | Belonenko M.B.,Volgograd Institute of Business
Physica B: Condensed Matter | Year: 2014

The paper addresses the propagation of ultra-short optical pulses in chiral carbon nanotubes in the presence of external alternating electric field. Following the assumption that the considered optical pulses are represented in the form of discrete solitons, we analyze the wave equation for the electromagnetic field and consider the dynamics of pulses in external field, their initial amplitudes and frequencies. © 2014 Elsevier B.V. Source


Yanushkina N.N.,Volgograd State University | Belonenko M.B.,Volgograd Institute of Business | Lebedev N.G.,Volgograd State University
Optics and Spectroscopy (English translation of Optika i Spektroskopiya) | Year: 2010

The Maxwell equations for an electromagnetic field propagating in graphene are considered taking into account strong Coulomb repulsion between electrons of the same site possessing opposite spin projections. The derived effective equation has the form of a classical 2D sine-Gordon equation. Electrons are treated in terms of quantum formalism with allowance for the dispersion law in the presence of Coulomb interaction. The effective equation is analyzed numerically and the effect of Coulomb repulsion is revealed. It is shown that the system in an external homogeneous electromagnetic field, with its period much shorter than the characteristic pulse length, may show the amplification of an ultimately short pulse. © 2010 Pleiades Publishing, Ltd. Source


Belonenko M.B.,Volgograd Institute of Business | Popov A.S.,Volgograd State University | Lebedev N.G.,Volgograd State University
Technical Physics Letters | Year: 2011

The problem of the propagation of a solitary wave-a two-dimensional analog of the so-called laser (light) bullet-in an array of carbon nanotubes with metal inhomogeneities (defects) has been considered. An effective equation for the vector potential of this wave is obtained and numerically studied. It is established that the scattering of a laser bullet on a pair of metal inhomogeneities is accompanied by characteristic "beats" of the electromagnetic field. © 2011 Pleiades Publishing, Ltd. Source


Pak A.V.,Volgograd State University | Belonenko M.B.,Entropique Inc. | Belonenko M.B.,Volgograd Institute of Business
Physics of the Solid State | Year: 2013

The propagation of an ultrashort optical pulse in a multilayer structure formed by alternating graphene and boron nitride layers has been considered. Conduction electrons of this system have been described within the long-wavelength effective Hamiltonian in the case of low temperatures, and the electromagnetic field has been taken into account based on classical Maxwell's equations. The dependence of the evolution on the velocity and maximum amplitude of the ultrashort pulse has been revealed. © 2013 Pleiades Publishing, Ltd. Source

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