Dr. P.R. Sasi Kumar received his Ph.D from the CochinUniversity of Science and Technology in 1995. His career started as a lecturerat the Institute for Human Resources Development in Electronics, Trivandrum andthen as a Scientist at the Institute for Plasma Research, Ahemadabad. He ispresently working as a Associate Professor in Maharajas College, Ernakulam,Kerala. His current research interest is in Photonics.