The Harper–Hofstadter Hamiltonian and conical diffraction in photonic lattices with grating assisted tunneling

Dubček, Tena and Lelas, Karlo and Jukić, Dario and Pezer, Robert and Soljačić, Marin and Buljan, Hrvoje (2015) The Harper–Hofstadter Hamiltonian and conical diffraction in photonic lattices with grating assisted tunneling. New Journal of Physics, 17 (12). pp. 125002-7. ISSN 1367-2630

[img]
Preview
PDF - Published Version
Available under License Creative Commons Attribution.
Language: English

Download (963kB) | Preview

Abstract

We propose the realization of a grating assisted tunneling scheme for tunable synthetic magnetic fields in optically induced one- and two-dimensional dielectric photonic lattices. As a signature of the synthetic magnetic fields, we demonstrate conical diffraction patterns in particular realization of these lattices, which possess Dirac points in k-space. We compare the light propagation in these realistic (continuous) systems with the evolution in discrete models representing the Harper–Hofstadter Hamiltonian, and obtain excellent agreement.

Item Type: Article
Keywords: synthetic magnetic fields, photonic lattices, Dirac points
Date: 7 December 2015
Subjects: NATURAL SCIENCES > Physics
Divisions: Faculty of Science > Department of Physics
Project code: UKF 5/13
Publisher: IOP Institute of Physics
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 12 Feb 2016 14:22
Last Modified: 30 Nov 2017 15:14
URI: http://digre.pmf.unizg.hr/id/eprint/4515

Actions (login required)

View Item View Item