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Updated: Feb 6, 2026

Compact Quantum Dots for Single-molecule Imaging
Published on: October 9, 2012
Electro-optic polarization tuning of microcavities with a single quantum dot
Abstract:
We present an oxide aperture microcavity with embedded quantum dots which utilizes a three-contact design to independently tune the quantum dot wavelength and birefringence of the cavity modes. A polarization splitting tuning of ∼5 GHz is observed. For a typical microcavity polarization splitting, the method can be used to achieve perfect polarization degeneracy that is required for many polarization-based implementations of photonic quantum gates. The embedded quantum dot wavelength can be tuned into resonance with the cavity, independent of the polarization tuning.
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