1. School of Physics, University of Sydney, Sydney, New South Wales 2006, Australia
2. Center for Risk Management and Safety Sciences, Yokohama National University, Yokohama 240-8501, Japan
3. Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya st. 13 Bld. 2, Moscow 125412, Russia
4. Metamaterials Laboratory, National Research University of Information Technology, Mechanics, and Optics, St Petersburg 199034, Russia
5. Institute of Science and Technology Research, Chubu University, Kasugai, 487-8501, Japan