Van der Waals engineering for quantum-entangled photon generation

IF 32.3 1区物理与天体物理 Q1 OPTICS

Nature Photonics Pub Date : 2024-10-14 DOI:10.1038/s41566-024-01545-5

Leevi Kallioniemi, Xiaodan Lyu, Ruihua He, Abdullah Rasmita, Ruihuan Duan, Zheng Liu, Weibo Gao

引用次数: 0

Abstract

Van der Waals engineering serves as a powerful tool to tailor material properties and design excitonic devices. Here we report quantum-entangled photon pair generation through van der Waals engineering with two-dimensional materials. We align two van der Waals thin layers perpendicular to each other, yielding polarization-entangled photon pairs through the interference of biphoton emission in the two flakes. The polarization-entangled state is measured with a fidelity up to 86 ± 0.7%. The compatibility of van der Waals engineering with on-chip photonics opens new possibilities for entangled photon source integration at the subwavelength scale.

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范德瓦耳斯工程促进量子纠缠光子的产生

范德华工程是定制材料特性和设计激子器件的有力工具。在这里，我们报告了通过二维材料范德华工程生成量子纠缠光子对的情况。我们将两个范德瓦耳斯薄层相互垂直排列，通过两个薄片中双光子发射的干涉产生了偏振纠缠光子对。偏振纠缠态的测量保真度高达 86 ± 0.7%。范德华工程与片上光子学的兼容性为亚波长尺度的纠缠光子源集成开辟了新的可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nature Photonics 物理-光学

CiteScore

54.20

自引率

1.70%

发文量

158

审稿时长

12 months

期刊介绍： Nature Photonics is a monthly journal dedicated to the scientific study and application of light, known as Photonics. It publishes top-quality, peer-reviewed research across all areas of light generation, manipulation, and detection. The journal encompasses research into the fundamental properties of light and its interactions with matter, as well as the latest developments in optoelectronic devices and emerging photonics applications. Topics covered include lasers, LEDs, imaging, detectors, optoelectronic devices, quantum optics, biophotonics, optical data storage, spectroscopy, fiber optics, solar energy, displays, terahertz technology, nonlinear optics, plasmonics, nanophotonics, and X-rays. In addition to research papers and review articles summarizing scientific findings in optoelectronics, Nature Photonics also features News and Views pieces and research highlights. It uniquely includes articles on the business aspects of the industry, such as technology commercialization and market analysis, offering a comprehensive perspective on the field.