1. Photonic Materials Metrology Sub Division, Advanced Materials and Device Metrology Division CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg New Delhi 110012 India
2. Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
3. Department of Industrial Chemistry & Applied Chemistry, Swami Vivekananda Research centre Ramakrishna Mission Vidyamandira, Belur Math Howrah 711202 India
4. School of Materials Science and Technology Indian Institute of Technology (Banaras Hindu University) Varanasi 221005 India