二维滑石作为一种天然丰富的超宽带双曲材料

IF 5.1 3区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nanoscale Pub Date : 2025-09-29 DOI:10.1039/d5nr02966j

Flávio Henrique Feres, Francisco Carlos Barbosa Maia, Shu Chen, Victor Mazzotti, Rafael Alves Mayer, Maximillian Obst, Osama Hatem, Lukas Wehmeier, Tobias Nörenberg, Matheus Queiroz, J. Michael Klopf, Susanne C. Kehr, Lukas M. Eng, Alisson Ronieri Cadore, Rainer Hillenbrand, Raul de Oliveira Freitas, Ingrid David Barcelos

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引用次数: 0

摘要

我们证明了二维滑石，一种天然丰富的层状硅酸盐矿物，支持双曲声子极化子（HPhPs）在中远红外波长。利用散射扫描近场光学显微镜（s-SNOM）和同步红外纳米光谱学（SINS），我们揭示了滑石粉薄片的可调HPhP模式，该模式具有长寿命、高约束和高达5的质量因子。我们进一步观察了锥形薄片中的法布里-帕氏腔模式，并通过模拟和分析模型加以证实。与合成晶体相比，滑石为红外纳米光子学和光电子学提供了超宽带、低成本和可持续的平台。

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Two-dimensional talc as a natural abundant ultra-broadband hyperbolic material

We demonstrate that two-dimensional talc, a naturally abundant phyllosilicate mineral, supports hyperbolic phonon-polaritons (HPhPs) across the mid- and far-infrared wavelengths. Using scattering scanning near-field optical microscopy (s-SNOM) and synchrotron infrared nano-spectroscopy (SINS), we reveal tunable HPhP modes in talc flakes with long lifetimes, high confinement, and quality factors of up to 5. We further observe Fabry–Pérot cavity modes in tapered flakes, confirmed by simulations and analytical modeling. Compared to synthetic crystals, talc offers an ultra-broadband, low-cost, and sustainable platform for infrared nanophotonics and optoelectronics.

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来源期刊

Nanoscale CHEMISTRY, MULTIDISCIPLINARY-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

12.10

自引率

3.00%

发文量

1628

审稿时长

1.6 months

期刊介绍： Nanoscale is a high-impact international journal, publishing high-quality research across nanoscience and nanotechnology. Nanoscale publishes a full mix of research articles on experimental and theoretical work, including reviews, communications, and full papers.Highly interdisciplinary, this journal appeals to scientists, researchers and professionals interested in nanoscience and nanotechnology, quantum materials and quantum technology, including the areas of physics, chemistry, biology, medicine, materials, energy/environment, information technology, detection science, healthcare and drug discovery, and electronics.