1. Sensor Device & Metrology, CSIR-National Physical Laboratory (NPL), Dr. K. S. Krishnan Marg, New Delhi 110012, India
2. Academy of Scientific & Innovative Research, CSIR-HRDC Campus, Ghaziabad, Uttar Pradesh 201002, India
3. School of Electrical and Electronic Engineering, RMIT University, Melbourne, VIC 3000, Australia