His research interests are in nanophotonics, metamaterials and nonlinear optics. His is a fellow of the Royal Society of London, Member of the United States of America National Academy of Engineering. He is also a fellow of the European Physical Society, the Institute of Physics and the Optical Society of America (Optica) and American Physical Society. His personal awards include the IOP Thomas Young medal and Michael Faraday Gold medal, the President of Singapore Science and Technology Award and the IPS President Gold medal.