Sajan D. George is a Professor at the Department of Atomic and Molecular Physics, Manipal Academy of Higher Education. He obtained a Master's degree in Physics and a Ph.D. in Photonics from Cochin University of Science and Technology, India. He spent more than one year (2004–2005) as a selected KU Leuven Postdoctoral Fellow at Katholikek Universiteit of Leuven, Belgium, in the area of applications of photothermal techniques for nanofluid characterization, under the guidance of Prof. Christ Glorieux. He is a member of the Indian Laser Association. His present research activities include nanoscale surface engineering for photonics and biomedical applications, novel optical particle manipulation techniques, photothermal methods, nanosensors, and novel nanoparticles for bioimaging.