Vivek Kumar Singh is an Associate Professor at the Department of Physics, University of Lucknow. He has more than 15 years of teaching and research experience at the university level. His current research interests include multi-spectroscopy studies of biological samples, plant samples, agricultural and food products, and nano-phosphor samples. He has published more than 90 international research papers and reviews articles. Dr Singh is a recipient of the prestigious “Raman Fellowship? for Post-Doctoral Research in Lawrence Berkeley National Laboratory, Berkley, USA.