Department of Applied Physics

Description

Nanoscience and Quantum Engineering

Quantum optics, cavity QED, and quantum information processing with quantum dots in nanocavities; Single quantum dot switches and modulators; Active III-V devices (modulators, solar cells, lasers); Active silicon nanophotonics; Nanometallics; Inverse Photonic Crystal Design; Nonlinear optics in photonic crystals

Lasers and Accelerators

Nanocavity lasers and laser arrays

Condensed Matter Physics

Density of phonon states in nanostructures, phonon-photon interaction in semiconductor quantum dots.

Biophysics

Single molecule spectroscopy in optical nanocavities; development of nanophotonic tools for early cancer detection

Courses Taught

• Optical micro- and nano-cavities
• Photonics Laboratory
• Introduction to Nanophotonics and Nanostructures
• Micro and Nano Optical Device Design

Selected Publications

• Ultra-fast Photonic Crystal Nanolasers
• Coherent generation of nonclassical light on a chip via photon-induced tunneling and blockade
• Controlling Cavity Reflectivity With a Single Quantum Dot
• Controlled Phase Shifts with a Single Quantum Dot
• Electrically pumped photonic crystal nanocavity light sources using a laterally doped p-i-n junction
• Inverse design of nanophotonic structures using complementary convex optimization
• Second harmonic generation in gallium phosphide photonic crystal nanocavities with ultralow continuous wave pump power
• Photonic Quantum Technologies
• Fast Electrical Control of a Quantum Dot Strongly Coupled to a Photonic Crystal Cavity
• Resonant excitation of a quantum dot strongly coupled to a photonic crystal nanocavity