1. Nanocrystalline Functional Materials Group, Laser Materials Development & Device Division; Raja Ramanna Centre for Advanced Technology; Indore 452013 India
2. UGC-DAE Consortium for Scientific Research; University Campus; Khandwa Road Indore 452 017 India
3. Semiconductor Laser Section, Solid State Laser Division; Raja Ramanna Centre for Advanced Technology; Indore 452013 India