His memberships include the Chemical-Physical, Austrian, German, and American Physical Societies, the Canadian Association of Physicists, as well as the Optical Society of America. He is a fellow of the QIP program of the Canadian Institute for Advanced Research, and in addition currently holds grants from the European Research Council (ERC), and the Austrian Science Fund (FWF). His research interests include fundamental physics both experimental and theoretical, quantum and semiconductor optics and quantum information. He currently focuses on novel sources of entangled photon pairs from nonlinear waveguides, via strong coupling in semiconductor microcavities, and from semiconductor quantum dots. He further does research in quantum communication and the foundations of physics.