Broadband near-infrared hyperbolic polaritons in MoOCl₂.

IF 14.7 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Nature Communications Pub Date : 2025-07-04 DOI:10.1038/s41467-025-61548-w

Yaolong Li, Yuxin Zhang, Weizhe Zhang, Xiaofang Li, Jinglin Tang, Jingying Xiao, Guanyu Zhang, Xin Liao, Pengzuo Jiang, Qinyun Liu, Yijie Luo, Zini Cao, Qinghong Lyu, Yuanbiao Tong, Ruoxue Yang, Hong Yang, Quan Sun, Yunan Gao, Pan Wang, Zuxin Chen, Wenjing Liu, Shufeng Wang, Guowei Lyu, Xiaoyong Hu, Martin Aeschlimann, Qihuang Gong

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Abstract

Hyperbolic polaritons have drawn great attention in nanoscale light manipulation due to their unique properties. Currently, most studies focus on natural hyperbolic phonon materials in the mid-infrared, limiting their application in the visible to near-infrared range. Here, we present a work on broadband near-infrared hyperbolic plasmon polaritons in a van der Waals material MoOCl₂ by a perturbation-free direct imaging technique of photoemission electron microscopy. In particular, the hyperbolic polariton behavior has been dynamically tailored and manipulated by wavelength, polarization, interlayer twist, and artificial structure, providing a reconfigurable platform for nanophotonic applications. Notably, the full iso-frequency contours can be reconstructed via polarization-selective excitations. Our work has contributed to hyperbolic materials in the broadband near-infrared with MoOCl₂, and has revealed PEEM to be an ideal method for studying hyperbolic plasmon polaritons at the space-time limit.

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MoOCl2的宽带近红外双曲极化。

双曲极化子由于其独特的性质在纳米尺度的光操纵中引起了广泛的关注。目前，大多数研究都集中在中红外的天然双曲声子材料上，限制了它们在可见光到近红外范围内的应用。本文采用无摄动的光电发射电子显微镜直接成像技术，研究了范德华材料MoOCl2中的宽带近红外双曲等离子体激元极化。特别是，双曲极化行为可以通过波长、极化、层间扭曲和人工结构进行动态调整和操纵，为纳米光子应用提供了可重构的平台。值得注意的是，通过极化选择激励可以重建完整的等频轮廓。我们的工作为MoOCl2在宽带近红外中的双曲材料做出了贡献，并揭示了PEEM是在时空极限下研究双曲等离子激元极化的理想方法。

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 Communications Biological Science Disciplines-

CiteScore

24.90

自引率

2.40%

发文量

6928

审稿时长

3.7 months

期刊介绍： Nature Communications, an open-access journal, publishes high-quality research spanning all areas of the natural sciences. Papers featured in the journal showcase significant advances relevant to specialists in each respective field. With a 2-year impact factor of 16.6 (2022) and a median time of 8 days from submission to the first editorial decision, Nature Communications is committed to rapid dissemination of research findings. As a multidisciplinary journal, it welcomes contributions from biological, health, physical, chemical, Earth, social, mathematical, applied, and engineering sciences, aiming to highlight important breakthroughs within each domain.