1. The Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
2. Faculty of Physics, Voronezh State University, 1 University Square, Voronezh 394018, Russia
3. Department of Physics, American University of Sharjah, PO Box 26666, Sharjah, UAE
4. Scientific and Educational Center “NanoBioTech”, Voronezh State University of Engineering Technologies, Voronezh 394017, Russia
5. Center for Soft Nanoscience, University of Münster, 48149 Münster, Germany
6. The Institute of Optics, University of Rochester, Rochester, New York 14627, USA