A single-step top-down fabrication creates free-standing CBGs with GaAs QDs, delivering up to 700x photoluminescence enhancement, 68% extraction efficiency, 45 MHz count rates, and reduced fine-structure splitting to 1.3 μeV.
Solid-state ensemble of highly entangled photon sources at rubidium atomic transitions,
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Free-standing circular Bragg gratings enabling efficient GaAs quantum dot entangled photon pair sources
A single-step top-down fabrication creates free-standing CBGs with GaAs QDs, delivering up to 700x photoluminescence enhancement, 68% extraction efficiency, 45 MHz count rates, and reduced fine-structure splitting to 1.3 μeV.