Extremely short pulses in anisotropic optical media with carbon nanotubes taking into account multiphoton absorption

Abstract

In this paper, we study the influence of multiphoton absorption on the propagation of electromagnetic waves in a nonlinear optical anisotropic medium with carbon nanotubes. The effective equation for the vector potential of the electromagnetic field of the pulse is obtained, taking into account the second component of the polarization of the field, as well as two- and three-photon absorption processes. The dependence of the components of the pulse field on the parameters of the problem is revealed. Keywords: optical anisotropy, extremely short pulse, multiphoton absorption.

Modeling of the dynamics of extremely short optical pulses in carbon nanotubes with random impurities taking into account multiphoton absorption

“…Note that the impurity parameters (energy level, electron hybridization energy) can turn out to be random and vary within rather wide limits, due to the different environment of the impurity, its different random position relative to the nanotube hexagons (in the center of the hexagon, on the C−C-bond, above the carbon atom), as well as the presence of other nearby impurities or adsorbed atoms. Therefore, in this paper, we study the effect of such impurity on the dynamics of extremely short optical pulse as it propagates in a nonlinear medium with CNTs, taking into account multiphoton absorption [5] according to the model given in the paper [6].…”