Statistical properties of exciton fine structure splitting and polarization angles in quantum dot ensembles

Ming Gong,1,2,* B. Hofer,3 E. Zallo,3 R. Trotta,3,4,† Jun-Wei Luo,5,6,‡ O. G. Schmidt,3 and Chuanwei Zhang2 1Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China 2Department of Physics, The University of Texas at Dallas, Richardson, Texas 75080, USA 3Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstr. 20, D-01069 Dresden, Germany 4Institute of Semiconductor and Solid State Physics, Johannes Kepler University Linz, Altenbergerstr. 69, A-4040 Linz, Austria 5State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083, China 6Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China (Received 26 June 2013; revised manuscript received 1 November 2013; published 20 May 2014)