paper

Superradiant terahertz emission by dipolaritons

arXiv:1211.0688 · doi:10.1103/PhysRevLett.111.176401

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.

5+10 pages, 3+5 figures; close to printed version, to appear in Phys. Rev. Lett

References in corpus (6)

Cited by in corpus (25)