Coupling atomic emitters to optical microcavities in the solid state allows for the study of cavity quantum electrodynamics and the fabrication single photon (SP) devices. Optoelectronic devices providing non-classical light states have a broad range of applications in quantum information science, including quantum key distribution systems, quantum lithography, and quantum computing. Here, the oxide apertured micropillar approach demonstrates high quality microcavities with cavity quality factors up to 50, 000 and measured Purcell enhancements of 10. In addition the inherent advantages provided by the oxide apertured micropillar, specifically high collection efficiency, have produced SPSs with record high SP rates and quantum efficiencies representing a six-fold improvement over reported values. In addition we have developed and integrated a scheme allowing for on-chip electrical control of SP devices for the implementation of SPSs with novel functionalities.(c) A focus on the blue circled areas from (a) and (b) detailing the change in the energy band diagram as a bias voltage is applied. ... In both design cases the QD charge state is actively controlled by applying a bias voltage across the QDs.
|Title||:||Single Photon Sources Using Oxide Apertured Micropillars with Integrated Electrical Control for Novel Functionalities|
|Author||:||Nicholas G. Stoltz|
|Publisher||:||ProQuest - 2007|