1. SA-5, Central Scientific Instruments Organization, Chandigarh, India
2. Department of Physics, Sri Guru Gobind Singh College, Chandigarh, India
3. A 702, NIT Campus, Dr B R Ambedkar National Institute of TechnologyJalandhar, India
4. Chitkara University Institute of Engineering and Technology, Chitkara University, Punjab, India
5. Centre for Liquid Crystal Research, Chitkara University Institute of Engineering and Technology, Chitkara University, Punjab, India
6. Liquid Crystal Lab, Department of Physics, Dr B R Ambedkar National Institute of Technology, Jalandhar, India