Rajarshi Mahapatra received a Ph.D. in Electronics and Electrical Communication Engineering from the Indian Institute of Technology Kharagpur, India, and B.Tech. and M. Tech. degree in Optics and Optoelectronics from University of Calcutta. In his postdoctoral research in CEA-LETI, Grenoble, France, he was engaged the FP7 Call4 BeFEMTO and Greentouch project.