171Yb3+ in YVO4 is a promising candidate for building quantum networks with good optical addressability, excellent spin properties and a secondary nuclear-spin quantum register. However, the associated long optical lifetime necessitates coupling to optical resonators for faster emission of single photons and to facilitate control of single 171Yb ions. Previously, single 171Yb ions were addressed by coupling them to monolithic photonic crystal cavities fabricated via lengthy focused ion beam milling. Here, we design and fabricate a hybrid platform based on ions coupled to the evanescently decaying field of a GaAs photonic crystal cavity. We experimentally detect and demonstrate coherent optical control of single 171Yb ions. For the most strongly coupled ions, we find a 64 fold reduction in lifetime. The results show a promising route towards a quantum network with 171Yb:YVO4 using a highly scalable platform.
Cite
@article{arxiv.2212.01994,
title = {A hybrid quantum photonic interface for $^{171}$Yb solid-state qubits},
author = {Chun-Ju Wu and Daniel Riedel and Andrei Ruskuc and Ding Zhong and Hyounghan Kwon and Andrei Faraon},
journal= {arXiv preprint arXiv:2212.01994},
year = {2022}
}