Engineering Quantum Light Sources with Flat Optics

• URL: http://arxiv.org/abs/2402.16265v2
• Date: Tue, 27 Feb 2024 04:32:58 GMT
• Title: Engineering Quantum Light Sources with Flat Optics
• Authors: Jinyong Ma, Jihua Zhang, Jake Horder, Andrey A. Sukhorukov, Milos Toth, Dragomir N. Neshev, Igor Aharonovich
• Abstract summary: This review focuses on the recent advances in leveraging flat optics to generate quantum light sources. Specifically, we explore the generation of entangled photon pairs through spontaneous parametric down-conversion in nonlinear metasurfaces. We discuss the diverse application range of these sources and highlight the current challenges and perspectives in the field.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum light sources are essential building blocks for many quantum technologies, enabling secure communication, powerful computing, precise sensing and imaging. Recent advancements have witnessed a significant shift towards the utilization of ``flat" optics with thickness at subwavelength scales for the development of quantum light sources. This approach offers notable advantages over conventional bulky counterparts, including compactness, scalability, and improved efficiency, along with added functionalities. This review focuses on the recent advances in leveraging flat optics to generate quantum light sources. Specifically, we explore the generation of entangled photon pairs through spontaneous parametric down-conversion in nonlinear metasurfaces, as well as single photon emission from quantum emitters including quantum dots and color centers in 3D and 2D materials. The review covers theoretical principles, fabrication techniques, and properties of these sources, with particular emphasis on the enhanced generation and engineering of quantum light sources using optical resonances supported by nanostructures. We discuss the diverse application range of these sources and highlight the current challenges and perspectives in the field.

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