1. Photosciences and Photonics, Chemical science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram-695019, Kerala, India
2. Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
3. School of Physics (SoP), Indian Institute of Science Education and Research, Thiruvananthapuram-695551, Kerala, India
4. Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram-695019, Kerala, India
5. Department of Physics, St. John's College, Anchal, Kollam, Kerala, India