1. Institute of Laser EngineeringOsaka University 2-6 Yamadaoka Suita Osaka 565-0875 Japan
2. Faculty of Advanced Science and TechnologyKumamoto University 2-40-1 Kurokami, Chuo-ku Kumamoto-shi 860-8555 Japan
3. Ceramic Research Center of Nagasaki 605–2 Hiekoba Hasami, Higashisonogi Nagasaki 859-3726 Japan
4. Global Innovation CenterKyushu University 6-1 Kasuga-koen Kasuga-City Fukuoka 816-8580 Japan
5. School of Natural and Computational SciencesMassey University Albany Auckland 0632 New Zealand