1. Nanophotonics Laboratory
2. School of Physics
3. Bharathidasan University
4. Tiruchirappalli
5. India
6. Division of Physics
7. School of Advanced Science
8. VIT Chennai
9. Chennai-600 127
10. Advanced Centre of Research in High Energy Materials (ACRHEM)
11. University of Hyderabad
12. Hyderabad 500046