Professor of Engineering Mechanics, Swinburne University of Technology

Institute Chair Professor, HAG Professor of Physics, Indian Institute of Technology Delhi

Korea University, Department of Chemical and Biological Engineering

University of Warsaw

Deutsches Elektronen-Synchrotron DESY

Nanophotonics Laboratory, Department of Physics, Indian Institute of Technology Delhi

Electronics and Telecommunications Research Institute

City University of Hong Kong

Light Technology Institute, Karlsruhe Institute of Technology (KIT), www.phytonics.tech

Research fellow at IIT Delhi