氮化硅平台中的近可见拓扑边缘态

IF 2.8 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Express Pub Date : 2024-05-23 DOI:10.1364/ome.524958

David Sharp, Christopher Flower, Mahmoud Jalali Mehrabad, Arnab Manna, Hannah Rarick, Rui Chen, Mohammad Hafezi, Arka Majumdar

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引用次数: 0

摘要

迄今为止，拓扑光子学的演示主要局限于红外波段，因为红外波段的成像技术和低维量子材料都很有限。在这里，我们设计并制造了氮化硅环形谐振器阵列，以展示 780 纳米波长的光子拓扑边缘态。我们观察到了与整数量子霍尔哈密顿相对应的边缘态，这些边缘态具有拓扑保护功能，可抵御制造失序。这一演示将拓扑边缘态的概念扩展到了近可见光领域，并利用丰富的近可见光量子发射体库为非线性和非赫米特拓扑光子学铺平了道路。

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Near-visible topological edge states in a silicon nitride platform

Demonstrations of topological photonics have so far largely been confined to infrared wavelengths where imaging technology and access to low-dimensional quantum materials are both limited. Here, we designed and fabricated silicon nitride ring-resonator arrays to demonstrate photonic topological edge states at ∼780 nm. We observed edge states corresponding to the integer quantum Hall Hamiltonian with topological protection against fabrication disorder. This demonstration extends the concept of topological edge states to the near-visible regime and paves the way for nonlinear and non-Hermitian topological photonics with the rich library of near-visible quantum emitters.

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来源期刊

Optical Materials Express MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS

CiteScore

5.50

自引率

3.60%

发文量

377

审稿时长

1.5 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optical Materials Express (OMEx), OSA''s open-access, rapid-review journal, primarily emphasizes advances in both conventional and novel optical materials, their properties, theory and modeling, synthesis and fabrication approaches for optics and photonics; how such materials contribute to novel optical behavior; and how they enable new or improved optical devices. The journal covers a full range of topics, including, but not limited to: Artificially engineered optical structures Biomaterials Optical detector materials Optical storage media Materials for integrated optics Nonlinear optical materials Laser materials Metamaterials Nanomaterials Organics and polymers Soft materials IR materials Materials for fiber optics Hybrid technologies Materials for quantum photonics Optical Materials Express considers original research articles, feature issue contributions, invited reviews, and comments on published articles. The Journal also publishes occasional short, timely opinion articles from experts and thought-leaders in the field on current or emerging topic areas that are generating significant interest.