Quantum Nano-Optics Group

    Galina Khitrova's Quantum Nano-Optics of Semiconductors Group conducts experimental studies of the light-matter interaction of semiconductor heterostructures (quantum wells and dots) coupled to nanoscale optical cavities. Recently, this has led to the investigation of metallic cavities that allow light to be confined to regions one thousand times smaller than typical dielectric cavities, which creates a large vacuum electromagnetic field that greatly alters the dynamics of the c oupled quantum emitter. Among the group's goals is to use these nanocavities to demonstrate Purcell enhancement of spontaneous emission and cooperative emission from semiconductor quantum dots.

    Silver dipole antenna
    Model of silver dipole antenna coupled to near-surface indium-gallium-arsenide quantum well.