1. Transparent Electro-Active Materials Project, ERATO-SORST, Japan Science and Technology Agency, in Frontier Collaborative Research Center, Mail Box S2-13, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan, Institute of Solid State Physics, University of Latvia, Kengaraga iela 8, LV1063 Riga, Latvia, and Materials and Structures Laboratory & Frontier Collaborative Research Center, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan