1. Mahindra University,Department of Physics,Hyderabad,India
2. Indian Institiute of Technology, Madras,Department of Physics,Chennai,India
3. Indina Institute of Technology Kanpur,Department of Electrical Engineering,Kanpur,India
4. IIT Madras,Sivanathan Laboratories,Depatment of Physics,Boolingbrook,IL,USA
5. Indian Institute of Technology, Madras,Quantum Center of Excellence for Diamond and Emerging Materials,Department of Physics