1. Department of Applied Physics, Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Noida, India
2. Liquid Crystal Lab, Department of Physics, Dr. B. R. Ambedkar National Institute of Technology, Jalandhar, India
3. Amity School of Applied Sciences, Amity University, Haryana, India
4. Department of Physics, Dharma Samaj College (Dr. Bhim Rao Ambedkar University, Agra), Aligarh, India
5. CNR, Institute of Heritage Science, Sesto Fiorentino, Italy
6. URT-CNR, Universit`a di Camerino (UNICAM), Polo di Chimica, Camerino, Italy