1. International and Inter University Centre for Nanoscience and Nanotechnology
2. Mahatma Gandhi University
3. Kottayam
4. India
5. School of Pure and Applied Physics
6. UGC-DAE Consortium for Scientific Research
7. Kolkata 700 098
8. Department of Instrumentation and STIC
9. Cochin University of Science and Technology
10. Cochin 682 022
11. Light and Matter Physics Group
12. Raman Research Institute
13. Bangalore