Mid-Infrared and Far - Infrared Optics and Optoelectronic Devices,
Active Plasmonics and Metamaterials with Gain Media, Reconfigurable Metainterfaces Based on Phased Optical Antenna Arrays, Mid-Infrared and Terahertz Quantum Cascade Lasers, Semiconductor Quantum Wells and
Superlattices with Largely Tunable Optical Properties, Infrared Imaging and Spectroscopy, Nanophotonics, Graphene Optoelectronic Devices