Optical properties

Extremely short optical pulse in a thin-film topological insulator with a hexagonal lattice

N. N. Yanushkina^a, A. V. Zhukov^bc, M. B. Belonenko<sup>cd

a</sup> Volgograd State University
^b Wilfrid Laurier University, Waterloo, Canada
^c Entropique Inc., London, Canada
^d Volgograd Bisiness Institute

Abstract: The propagation of an extremely short optical pulse in a thin-film topological insulator has been considered. The electrons are described by a low-temperature long-wavelength effective Hamiltonian, whereas the electromagnetic field is treated classically within the Maxwell’s equations. The dependence on the velocity and maximum amplitude of the extremely short pulse has been revealed.

Received: 27.12.2011

 English version: Physics of the Solid State, 2012, 54:8, 1625–1627

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