*Akihiko Ikeda^1,2, Yasuhiro H. Matsuda², Keisuke Sato³, Yuto Ishii², Hironobu Sawabe², Daisuke Nakamura^2,4, Shojiro Takeyama², Joji Nasu^5,6 (1. University of Electro-Communications, 2. University of Tokyo, 3. National Institute of Technology, Ibaraki College, 4. RIKEN, CEMS, 5. Tohoku University, 6. PREST, Japan)

*Allan H MacDonald¹, Ming Xie ¹, Wei Qin¹ (1. University of Texas at Austin)

*Juuso Manninen¹, Antti Laitinen¹, Francesco Massel², Pertti Hakonen¹ (1. Department of Applied Physics, Aalto University, Finland, 2. Department of Science and Industry Systems, University of South-Eastern Norway, Norway)

*Keisuke Kitayama¹, Masao Ogata¹, Yasuhiro Tanaka², Masahito Mochizuki² (1. The University of Tokyo, 2. Waseda University)