Discrete Vortices in Photonic Graphene
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Date
2017-04
Authors
Dybyspayeva, Kumiszhan
Journal Title
Journal ISSN
Volume Title
Publisher
Nazarbayev University School of Science and Technology
Abstract
Graphene is a relatively new 2D material consisting of carbon atoms in honeycomb
structure. Because of this structure, it has various interesting properties such as
linear dispersion relation in the low energy spectrum that governs relativistic nature
of electrons in graphene. Since there is an analogy between an electron wavepacket
dynamics in time and paraxial wave propagation in z-direction, a honeycomb lattice
of evanescently coupled optical waveguides, so called "photonic graphene", can be
used to study dynamics of optical wavepackets and to mimic quantum relativistic
behaviour in table-top experiments. Another interesting property of graphene is the
pseudospin that is associated with generation of vortices. The goal of the present
thesis is to investigate the unusual behaviour of the wavepacket in photonic graphene
by observing the role of pseudospin for discrete optical vortices in the photonic lattice.
Description
Keywords
Photonic Graphene
Citation
Kumiszhan Dybyspayeva. Discrete Vortices in Photonic Graphene. 2017. Department of Physics, School of Science and Technology, Nazarbayev University