1. Department of Applied Physics
2. Graduate School of Pure and Applied Sciences
3. University of Tsukuba
4. Tsukuba
5. Japan
6. Shiseido Global Innovation Center
7. Yokohama
8. Institut de Recherche XLIM
9. 87060 Limoges CEDEX
10. France
11. LEUKOS
12. 87280 Limoges