Output polarization characteristics of a GaN microcavity diode polariton laser
Baten, Md Zunaid
Date of Issue2016
School of Physical and Mathematical Sciences
We report the steady state output polarization characteristics of GaN-based microcavity polariton lasers operated with electrical injection at room temperature. The output is unpolarized below the nonlinear threshold injection current and is linearly polarized above it with a maximum degree of polarization of ∼ 22 % . The results have been analyzed theoretically, and the calculated results are in agreement with the measured data. We have also measured the polarization-resolved output light current characteristics, wherein a distinct lowering of the non-linear threshold is observed in one device. This is interpreted in terms of spatially inhomogeneous lifting of degeneracy and polarization splitting in the microcavity.
Physical Review B
© 2016 American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of 2016 American Physical Society. The published version is available at: [http://dx.doi.org/10.1103/PhysRevB.94.035203]. 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.