1. Department of Physics University of Rajasthan Jaipur Jaipur Rajasthan 302004 India
2. Department of Physics School of Basic Science Manipal University Jaipur Jaipur Rajasthan 303007 India
3. Department of Physics Indian Institute of Technology, Jodhpur Jodhpur Rajasthan 342011 India
4. Department of Physics Suresh Gyan Vihar University Jaipur Jaipur Rajasthan 302015 India
5. Department of Physics SS Jain Subodh PG (Auto.) College Jaipur Jaipur Rajasthan 302004 India