1. Crystal Growth and Instrumentation Section, Laser and Functional Materials Division Raja Ramanna Centre for Advanced Technology Indore 452013 India
2. Homi Bhabha National Institute Training School Complex, Anushakti Nagar Mumbai 400094 India
3. Department of Optoelectronics University of Kerala Kariavattom Trivandrum 695581 Kerala India
4. Materials Science Group Indira Gandhi Centre for Atomic Research Kalpakkam 603102 Tamilnadu India