Superradiant terahertz emission by dipolaritons
Mesoscale and Nanoscale Physics
2013-10-24 v3 Optics
Abstract
Dipolaritons are mixed light-matter quasiparticles formed in double quantum wells embedded in microcavities. Due to resonant coupling between direct and indirect excitons via electronic tunnelling, dipolaritons possess large dipole moments. Resonant excitation of the cavity mode by a short pulse of light induces oscillations of the indirect exciton density with a characteristic frequency of Rabi flopping. This results in oscillations of classical Hertz dipoles array which generate supperradiant emission on a terahertz (THz) frequency. Resulting THz signal may be enhanced using the supplementary THz cavity in the weak coupling regime.
Keywords
Cite
@article{arxiv.1211.0688,
title = {Superradiant terahertz emission by dipolaritons},
author = {O. Kyriienko and A. V. Kavokin and I. A. Shelykh},
journal= {arXiv preprint arXiv:1211.0688},
year = {2013}
}
Comments
5+10 pages, 3+5 figures; close to printed version, to appear in Phys. Rev. Lett