Title : Characterizing the light emitted from single semiconductor quantum dots
Abstract : Semiconductor quantum dots (QDs) of InAs in GaAs are bright emitters of discrete photons. They can be used in a variety of fundamental quantum optics experiments and will likely contribute to applications in quantum information. The benefits of semiconductor QDs in quantum information are integration and scaling. Yet, the very properties that allow these benefits also create intrinsic problems.
After a general introduction to the fabrication and optical properties of QDs, I will discuss second order correlation measurements of QD light. The second-order auto-correlation is important in distinguishing between classical and quantum light sources. It is particularly important here for the characterization of the single-photon purity. The second-order cross-correlation offers insight into the indistinguishability properties of the light. As technology improves and material system change, these measurements naturally evolve. I will discuss one or two evolutions in these techniques, and make some connections to applications using QD light.
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