1. Department of Physics, Jadavpur University, 188 Raja S. C. Mullik Road, Kolkata 700032, India
2. Department of Physics, Netaji Nagar College for Women, 170/13/1 N. S. C. Bose Road, Regent Estate, Kolkata 700092, India
3. Government General Degree College at Pedong, Sakiyong Khasmahal, West Bengal 734311, India
4. Department of Medical Physics and Biomedical Engineering, University College London, Gower Street, Bloomsbury, London WC1E 6BT, United Kingdom