Research


General Description:

Our research is currently focused on the physics and applications of semiconductor nanostructures and quantum device structures. We use state-of-the-art spectroscopic techniques to study charge, spin, and vibrational dynamics in a variety of nanostructures. The impact of our research includes: increased understanding of the quantum states and dynamics of interacting, confined, or strongly driven electrons in nanostructures; new spectroscopy techniques; novel device concepts and implementations (especially towards all-optical switches and spin-based devices); establishment of the quantum nature of semiconductor-light interaction; progress towards the solid-state realization of quantum information processing, computation and communications; and provision of a controlled environment in which to address unanswered questions in many-body physics.

 

Areas of Research:

Optical and Terahertz Response of Ferromagnetic III-V Semiconductors

Optical Processes in Carbon Nanotubes

Optics of 2-D Excitons in High Magnetic Fields

The Dynamic Franz-Keldysh Effect

Intersubband Transitions in InAs/AlSb Quantum Wells

Cyclotron Resonance in Ultrahigh Magnetic Fields

Time-Resolved Far-Infrared Spectroscopy with a Free Electron Laser

Mid-InfraRed Technologies for Health and the Environment (MIRTHE Engineering Research Center at Princeton, sponsored by the National Science Foundation)