Abstract
Photonic crystal (PhC) structures are good platform for solid-state quantum photonics. Efficient generation and guiding of single photons from semiconductor quantum dots (QDs) embedded in two dimensional (2D) PhC waveguides have been demonstrated recently. Various cavity quantum electrodynamics (CQED) phenomena have also been intensively explored in 2D PhC nanocavities coupled with a single QD. On the other hand, three-dimensional (3D) structures can provide other degrees of freedom for controlling photons and light-matter interaction. In this presentation, after a short review of our recent progresses on QD-CQED systems using 2D PhC nanocavities, we will discuss chiral 3D PhCs and its applications to control the light emission properties of QDs. Because of the chiral nature of the structure, chiral 3D PhCs enable to engineer the electromagnetic vacuum field for circularly polarized photons. This results in the generation of highly circularly polarized photons from QDs embedded in such chiral structures.
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