We develop a telecom-band nanophotonic spin-photon interface with erbium dopants in silicon. We perform photoluminescence spectroscopy of Er3+ in silicon-on-insulator (SOI) wafers and measure Purcell enhancement, optical linewidths and transition dipoles in nanophotonic cavities. Comments and questions should be directed to Tian Zhong (tel: +1 773.834.4237, e-mail: tzh@uchicago.edu ).

Conference on Lasers and Electro-OpticsJan 1, 20212 citations

Room temperature Purcell enhanced single erbium ions in silicon-carbide-on-insulator microring resonators

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arXiv:2509.11592 · Nanomaterials

Integration of Er3+ Emitters in Silicon-on-Insulator Nanodisk Metasurface

Joshua Bader, Hamed Arianfard, Vincenzo Ciavolino, Mohammed Ashahar Ahamad, Faraz Ahmed Inam, Shin Sato, Stefania Castelletto

Published Oct 1, 2025• 2 citations

arXiv HTML PDF

Abstract

DOI: 10.3390/nano15191499

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\text{Er}^{3+}

) are particularly compelling due to their exceptional emitter properties, including small spectral diffusion and long spin coherence times. However, their low C-band photon-emission rate and operation at cryogenic temperatures has limited the realization of this technology. In this work, we demonstrate fully integrated single-photon emission from an ion implanted

\text{Er}^{3+}

-embedded into a 4H-silicon-carbide-on-insulator (4H-SiCOI) microring resonator operating at room temperature. By optimizing the mode overlap between the resonator and the

\text{Er}^{3+}

-defect, we achieved a $\sim

70

\times$ Purcell enhancement and recorded small spectral diffusion of $\sim$54 MHz. We further characterize the

\text{Er}^{3+}

single photon emission via photon correlation g

^{(2)}

-histograms and investigate its performance under varying magnetic-field, demonstrating Zeeman splitting on single emitters.