Versatile, tunable, and potentially scalable single-photon sources are a key asset in emergent photonic quantum technologies. In this work, a single-photon source based on WS2 micro-domes, created via hydrogen ion irradiation, is realized and integrated into an open, tunable optical microcavity. Single-photon emission from the coupled emitter-cavity system is verified via the second-order correlation measurement, revealing a g(2)(τ=0) value of 0.3. A detailed analysis of the spectrally selective, cavity enhanced emission features shows the impact of a pronounced acoustic phonon emission sideband, which contributes specifically to the non-resonant emitter-cavity coupling in this system. The achieved level of cavity-emitter control highlights the potential of open-cavity systems to tailor the emission properties of atomically thin quantum emitters, advancing their suitability for real-world quantum technology applications.
@article{arxiv.2511.21630,
title = {Tunable WS$_2$ Micro-Dome Open Cavity Single Photon Source},
author = {Jens-Christian Drawer and Salvatore Cianci and Vita Solovyeva and Alexander Steinhoff and Christopher Gies and Falk Eilenberger and Kenji Watanabe and Takashi Taniguchi and Ivan Solovev and Giorgio Pettinari and Federico Tuzi and Elena Blundo and Marco Felici and Antonio Polimeni and Martin Esmann and Christian Schneider},
journal= {arXiv preprint arXiv:2511.21630},
year = {2025}
}