Light-sound interconversion in optomechanical Dirac materials
Abstract
Analyzing the scattering and conversion process between photons and phonons coupled via radiation pressure in a circular quantum dot on a honeycomb array of optomechanical cells, we demonstrate the emergence of optomechanical Dirac physics. Specifically we prove the formation of polaritonic quasi-bound states inside the dot, and angle-dependent Klein tunneling of light and emission of sound, depending on the energy of the incident photon, the photon-phonon interaction strength, and the radius of the dot. We furthermore demonstrate that forward scattering of light or sound can almost switched off by an optically tuned Fano resonance; thereby the system may act as an optomechanical translator in a future photon-phonon based circuitry.
Cite
@article{arxiv.1707.06773,
title = {Light-sound interconversion in optomechanical Dirac materials},
author = {Christian Wurl and Holger Fehske},
journal= {arXiv preprint arXiv:1707.06773},
year = {2017}
}
Comments
8 pages, 6 figures, revised version