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arXiv · 2511.21630

Tunable WS$_2$ Micro-Dome Open Cavity Single Photon Source

Jens-Christian Drawer·Salvatore Cianci·Vita Solovyeva·Alexander Steinhoff·Christopher Gies·Falk Eilenberger·Kenji Watanabe·Takashi Taniguchi·Ivan Solovev·Giorgio Pettinari·Federico Tuzi·Elena Blundo·Marco Felici·Antonio Polimeni·Martin Esmann·Christian Schneider
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Abstract

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 WS$_2$ 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 $g^{(2)}(\tau=0)$ 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.

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Jens-Christian Drawer, Salvatore Cianci, Vita Solovyeva, Alexander Steinhoff, Christopher Gies, Falk Eilenberger, Kenji Watanabe, Takashi Taniguchi, Ivan Solovev, Giorgio Pettinari, Federico Tuzi, Elena Blundo, Marco Felici, Antonio Polimeni, Martin Esmann, Christian Schneider. 2025-11-26. Tunable WS$_2$ Micro-Dome Open Cavity Single Photon Source. https://doi.org/10.1002/adom.202503607

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