Ultra-fast spinor switching in polariton condensates
Liew, Timothy Chi Hin
Savvidis, Pavlos G.
Kavokin, Alexey V.
Lagoudakis, Pavlos G.
Date of Issue2014
CLEO: Science and Innovations 2014
School of Physical and Mathematical Sciences
We demonstrate a linear to circular polarization conversion mechanism of a confined polariton condensate created by an optical potential trap. This system features a high degree of circular polarization under linear polarization pumping and is favorable for the development of spin logic operations. The physical mechanism behind this process is explained by the spin precession in the exciton reservoir that results in a condensate of a preferred spin state. Application of a non-resonant below threshold femtosecond pulse on the spinor condensate results in an ultrafast reversal of the spin state.
© 2014 Optical Society of America (OSA). This paper was published in CLEO: Science and Innovations 2014 and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The published version is available at: [http://dx.doi.org/10.1364/CLEO_SI.2014.STu3O.3]. 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.