Output polarization characteristics of a GaN microcavity diode polariton laser

作     者：Aniruddha Bhattacharya Md Zunaid Baten Ivan Iorsh Thomas Frost Alexey Kavokin Pallab Bhattacharya 

作者机构：Center for Photonics and Multiscale Nanomaterials Department of Electrical Engineering and Computer Science University of Michigan 1301 Beal Avenue Ann Arbor Michigan 48109 USA National Research University for Information Technology Mechanics and Optics (ITMO) St. Petersburg 197101 Russia Division of Physics and Applied Physics Nanyang Technological University 637371 Singapore CNR-SPIN Viale del Politecnico 1 I-00133 Rome Italy School of Physics and Astronomy University of Southampton SO17 1BJ Southampton United Kingdom Spin Optics Laboratory State University of St. Petersburg 1 Ulianovskaya 198504 St. Petersburg Russia 

出 版 物：《Physical Review B》 (凝聚态物质与材料物理学)

年 卷 期：2016年第94卷第3期

页      面：035203-035203页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：National Science Foundation, NSF Materials Research Science and Engineering Center, Harvard University, MRSEC, (DMR-1120923, MK-5220.2015.2) Engineering and Physical Sciences Research Council, EPSRC, (EP/M025330/1) Ministry of Education - Singapore, MOE, (MOE2015-T2-1-055) 

主　　题：Optoelectronics Polaritons Polarization 

摘      要：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.