Dr. Govind B. Nair obtained his Masters degree in Physics from the R.T.M. Nagpur University, Nagpur, India. He received two gold medals for securing first rank in his Masters degree. He pursued his PhD from R.T.M. Nagpur University under the guidance of Prof. S. J. Dhoble. He is currently a Post-Doctoral researcher at the University of Free State, Bloemfontein, South Africa. He was awarded with an INSPIRE Fellowship, which is a prestigious fellowship programme conducted by the Department of Science and Technology (DST), India. His area of research includes the synthesis and characterization of optical materials, theoretical analysis of luminescence processes, structural analysis of materials, etc. Prof. Sanjay J. Dhoble is presently working as a professor in the Department of Physics at R.T.M. Nagpur University, Nagpur, India. During his research career, he has worked on the synthesis and characterization of solid-state lighting materials, as well as the development of radiation dosimetry phosphors using thermoluminescence techniques and utilization of fly ash. Dr. Dhoble has more than 780 research publications in international and national peer-reviewed journals, more than 582 research papers are published in Scopus-indexed journals. Dr. Dhoble is an Editor of the journal Luminescence.