1. Department of Optoelectronics
2. University of Kerala
3. Thiruvananthapuram
4. India
5. Department of Physics
6. Department of Electrical and Materials Science
7. Faculty of Engineering Sciences
8. Kyushu University
9. Kasuga
10. Japan
11. Division of Materials Science and Engineering
12. Faculty of Engineering
13. Hokkaido University
14. Sapporo