Co-PI/Professor and Associate Graduate Dean.
Research in the Ghosh lab focuses on bridges fundamental photophysics with practical device considerations. For VISION, the specific research project is acheiving superfluorescence in metal halide perovskites (MHPs). This is a collective emission phenomenon where multiple excitons spontaneously synchronize and emit light coherently, and this process in MHPs is particularly interesting because it can occur at relatively high temperatures and exhibits unusually long coherence times compared to other materials. Therefore, it presents exciting opportunities across multiple applications, from ultrafast lasers and quantum light sources leveraging their coherent burst emission properties, to optical computing and communications exploiting their rapid switching capabilities. The intense, controllable emission could even enable advanced biosensing and imaging applications, particularly valuable where high temporal resolution and signal-to-noise ratio are crucial.