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arXiv · 2312.03637

A lithographically-defined quantum dot with sub-wavelength confinement of light

George Kountouris·Anne Sofie Darket·Lea Vestergaard·Emil Vosmar Denning·Jesper Mørk·Philip Trøst Kristensen
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Abstract

We present an optical cavity with deep sub-wavelength confinement of light in a region that simultaneously works as a quantum dot. The design is based on a dielectric membrane with a buried quantum well and restricts the electron and hole wave functions to the area of the optical hotspot in order to overcome the challenge of co-locating an optical cavity with a quantum emitter. Combined with proper surface passivation, this geometry points towards the deterministic fabrication of functional quantum dots in optical cavities by lithographic means.

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George Kountouris, Anne Sofie Darket, Lea Vestergaard, Emil Vosmar Denning, Jesper Mørk, Philip Trøst Kristensen. 2023-12-06. A lithographically-defined quantum dot with sub-wavelength confinement of light. https://arxiv.org/abs/2312.03637

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