In-situ three-dimensional strain engineering of solid-state quantum emitters in photonic structures towards scalable quantum networks

• URL: http://arxiv.org/abs/2504.02257v1
• Date: Thu, 03 Apr 2025 04:00:25 GMT
• Title: In-situ three-dimensional strain engineering of solid-state quantum emitters in photonic structures towards scalable quantum networks
• Authors: Yan Chen, Xueshi Li, Shunfa Liu, Jiawei Yang, Yuming Wei, Kaili Xiong, Yangpeng Wang, Jiawei Wang, Pingxing Chen, Xiao Li, Chaofan Zhang, Ying Yu, Tian Jiang, Jin Liu,
• Abstract summary: We develop a cryogenic-compatible strain-engineering platform based on a polydimethylsiloxane (PDMS) stamp.<n>In-situ 3D strain control is achieved for quantum dots embedded in photonic nanostructures.
• Score: 12.867945178547814
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Solid-state quantum emitters are pivotal for modern photonic quantum technology, yet their inherent spectral inhomogeneity imposes a critical challenge in pursuing scalable quantum network. Here, we develop a cryogenic-compatible strain-engineering platform based on a polydimethylsiloxane (PDMS) stamp that is not obviously working properly at cryogenic temperature. In-situ three-dimensional (3D) strain control is achieved for quantum dots (QDs) embedded in photonic nanostructures. The compliant PDMS enables independent tuning of emission energy and elimination of fine structure splitting (FSS) of single QDs, as demonstrated by a 7 meV spectral shift with a near-vanishing FSS in circular Bragg resonators and an unprecedented 15 meV tuning range in the micropillar. The PDMS-based 3D strain-engineering platform, compatible with diverse photonic structures at cryogenic temperature, provides a powerful and versatile tool for exploring fundamental strain-related physics and advancing integrated photonic quantum technology.

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