Exciton-polariton laser diodes
Savenko, I. G.
Shelykh, I. A.
Kulakovskii, V. D.
Kim, N. Y.
Kavokin, A. V.
Date of Issue2014
SPIE/COS Photonics Asia
School of Physical and Mathematical Sciences
Despite their name polariton lasers do not rely on stimulated emission of cavity photons. The less stringent threshold conditions are the cause that bosonic polariton lasers can outperform standard lasers in terms of their threshold currents. The part-light and part-matter quasiparticles called polaritons, can undergo a condensation process into a common energy state. The radiated light from such a system shares many similarities with the light emitted from a conventional photon laser, even though the decay of the polaritons out of the finite lifetime cavity is a spontaneous process. We discuss properties of polariton condensates in GaAs based microcavities. The system’s response to an external magnetic field is used as a reliable tool to distinguish between polariton laser and conventional photon laser. In particular, we will discuss the realization of an electrically pumped polariton laser, which manifests a major step towards the exploitation of polaritonic devices in the real world.
Proceedings of SPIE - The International Society for Optical Engineering Nanophotonics and Micro/Nano Optics II
© 2014 Society of Photo-optical Instrumentation Engineers (SPIE). This paper was published in Proceedings of SPIE - The International Society for Optical Engineering Nanophotonics and Micro/Nano Optics II and is made available as an electronic reprint (preprint) with permission of Society of Photo-optical Instrumentation Engineers (SPIE). The published version is available at: [http://dx.doi.org/10.1117/12.2074122]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.