This work implements a hybrid device based on a semiconductor quantum dot embedded within a nanowire to bridge a non-continuous curved waveguide structure. The geometry takes advantage of evanescent coupling between the photonic structures to recover single photons emitted from both outputs of the device. Auto- and cross-correlation measurements were performed on different output facets of the device. We demonstrate single-photon emission from both ends of the nanowire for both neutral, X and XX, and charged X-, excitonic complexes. We further demonstrate the cascaded XX-X emission by collecting each complex from a different facet. This work lays the foundation for on-chip architectures which utilize multi-directional integration of quantum emitters.
@article{arxiv.2603.12443,
title = {Advanced architectures for coupling III-V nanowires to photonic integrated circuitry},
author = {Edith Yeung and Kataryna Sorensen and David B. Northeast and Maziyar Milanizadeh and Philip J. Poole and Robin L. Williams and Dan Dalacu},
journal= {arXiv preprint arXiv:2603.12443},
year = {2026}
}