1. Hosono Transparent Electro-Active Materials (TEAM) Project, Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology (JST) Agency, KSP C-1232, 3-2-1 Sakado, Takatsu, Kawasaki 213-0012, Japan, Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama 226-8503, Japan