He received the venia legendi from ETH in 2001, went to Lehigh as an Associate Professor in October 2002, and became a Full Professor in 2010. At Lehigh, he established a research program dedicated to light-matter interaction, condensed matter physics, nonlinear optics, and materials for photonics. He is presently leading research into new paradigms for creating bulk organic materials for nonlinear optics, and excitation and transport in various materials from glasses to semiconductors. Recently, his research group has worked on uncovering some exciting properties of singlet and triplet excitons in a particularly nice organic crystal.