1. GPL Photonics Laboratory, State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences 1 , Changchun, Jilin 130033, People’s Republic of China
2. Department of Physics, College of Natural and Computational Sciences, Wolaita Sodo University 2 , P. O. Box 138, Wolaita Sodo, Ethiopia
3. Department of Chemical Sciences, University of Padova 3 , via Marzolo 1, 35122 Padova, Italy
4. Department of Physics, University of Konstanz 4 , Universitaetsstrasse 10, 78464 Konstanz, Germany
5. Department of Physics, Umeå University 5 , Linnaeus väg 24, SE-90187 Umeå, Sweden
6. Nanoinstitut München, Fakultät für Physik, Ludwig-Maximilians-Universität München 6 , 80539 München, Germany
7. Departamento de Física, FCEN, IFIBA-CONICET, Universidad de Buenos Aires 7 , C1428EGA Buenos Aires, Argentina
8. Department of Physics and Astronomy, University of Bologna 8 , 40127 Bologna, Italy
9. Department of Electrical and Systems Engineering, University of Pennsylvania 9 , Philadelphia, Pennsylvania 19104, USA
10. Department of Physics and Materials Science, University of Luxembourg 10 , 162a avenue de la Faiëncerie, 1511 Luxembourg, Luxembourg
11. Department of Physics, College of Natural and Computational Sciences, Jinka University 11 , P. O. Box 165, Jinka, Ethiopia
12. School of Science, Changchun University of Science and Technology 12 , Changchun 130022, China
13. EPF-Ecole d'Ingénieurs 13 , 55 Avenue du Président Wilson, 94230 Cachan, France
14. Istituto Italiano di Tecnologia 14 , Via Morego 30, 16163 Genova, Italy
15. CNR-NANO Istituto Nanoscience 15 , Via Campi, 213/a, 41125 Modena, Italy