1. Light and Material Group, PRESTO, JRDC, Department of Chemistry, School of Science, Kwansei Gakuin University, 1-1-155 Uegahara, Nishinomiya 662, Japan
2. Light and Material Group, PRESTO, JRDC, Research Laboratories DAISO Co. Ltd., 9 Otakasu, Amagasaki 660, Japan
3. Division of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 606-1, Japan
4. Institute of Advanced Material Study, Kyushu University, Kasugakoen 6-1, Kasuga, Fukuoka 816, Japan