High-performance Sources of Multidimensionally Engineered Quantum Light Based on Monolithic Microcavity-metalens Interfaces

Jiantao Ma; Dong Liu; Shunfa Liu; Jiawei Yang; Nilo Mata-Cervera; Bo Chen; Xueshi Li; Guixin Qiu; Kaixuan Chen; Hanqing Liu; Haiqiao Ni; Dunzhao Wei; Zhichuan Niu; Ying Yu; Yijie Shen; Liu Liu; Xuehua Wang; Jin Liu

arXiv · 2603.15391

High-performance Sources of Multidimensionally Engineered Quantum Light Based on Monolithic Microcavity-metalens Interfaces

Jiantao Ma·Dong Liu·Shunfa Liu·Jiawei Yang·Nilo Mata-Cervera·Bo Chen·Xueshi Li·Guixin Qiu·Kaixuan Chen·Hanqing Liu·Haiqiao Ni·Dunzhao Wei·Zhichuan Niu·Ying Yu·Yijie Shen·Liu Liu·Xuehua Wang·Jin Liu

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Abstract

The ultimate non-classic light sources for modern photonic quantum technology require on-demand generation of indistinguishable quantum light with high brightness and flexible engineering of quantum emission in multiple degrees of freedom. In this work, we present monolithic microcavity-metalens interfaces consisting of quantum-dot-micropillar single-photon sources and ultra-thin metalenses accurately aligned on opposite sides of an III-V compound semiconductor chip. The pronounced cavity quantum electrodynamics effect enabled by the micropillar cavity facilitates single-photon emission from quantum dots with simultaneous high degrees of single-photon purity, source brightness and photon indistinguishability while the multi-functional metalenses concurrently tailor quantum emission in multiple physical degrees of freedom including radiation divergence, emission directionality, polarization state and orbital angular momentum (OAM). Furthermore, high-fidelity polarization-OAM entanglement and single photons with local spin topologies are successfully generated in our integrated device. In particular, we demonstrate stable propagations of single-photon skrymions in atmospheric turbulence and reveal their topological advantages over the conventional structured quantum light. Our work advances the research fields of integrated quantum photonics and meta-optics, providing integrated high-dimensional quantum light sources for advanced photonic quantum science and technology.

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Jiantao Ma, Dong Liu, Shunfa Liu, Jiawei Yang, Nilo Mata-Cervera, Bo Chen, Xueshi Li, Guixin Qiu, Kaixuan Chen, Hanqing Liu, Haiqiao Ni, Dunzhao Wei, Zhichuan Niu, Ying Yu, Yijie Shen, Liu Liu, Xuehua Wang, Jin Liu. 2026-03-18. High-performance Sources of Multidimensionally Engineered Quantum Light Based on Monolithic Microcavity-metalens Interfaces. https://arxiv.org/abs/2603.15391

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