Institution: | Institute of Optoelectronics Technology, and Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Beijing 100044Departamento de Fisica, Instituto Superior de Engenharia do Porto, Rua Dr. Antonio Bernardino de Almeida 431, 4200-072 Porto, PortugalCentro de Fisica, Universidade do Minho, Campus de Azurem, 4800-058 Guimaraes, PortugalThin Film Center, University of Paisley, Paisley PA1 2BE, Scotland |