Dr. Rajesh Sharma received his Ph.D. in Lasers and Nanomaterials in collaboration with the Defence Lab, Defence Research and Development Organization, Jodhpur, and Punjabi University, Patiala, INDIA in 2006. Thereafter, he worked as Assistant and Associate Professor at the All India Council of Technical Education affiliated Institutes and held various responsibilities such as Dean Academics, officiating Director of Engineering Institute, and Head of Applied Sciences. He has worked for about 9 years as Senior Research Scientist at the College of Optics and Photonics, University of Central Florida, USA, Paul-Drude-Institut, Humboldt University, GERMANY, Universite Montpellier 2, FRANCE. Dr. Rajesh Sharma is presently working as Associate Professor in Department of pure and applied Physics, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, INDIA. He has also worked as Professor in Chandigarh University, INDIA.