Electrically Reconfigurable Plasmonic Metasurfaces Based on Phase-Change Materials Sb2S3

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-04-23 DOI:10.1021/acs.nanolett.5c00929

Zhuoxuan Han, Chensheng Li, Tengzhang Liu, Nannan Hu, Zhiqin Fan, Yang Guo, Baoli Liu, Haifang Yang, Aizi Jin, Baogang Quan, Shibing Tian, Yang Yang, Geng Li, Xiaofeng Fan, Sha Hu, Xin Huang, Changzhi Gu

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Abstract

Phase-change materials (PCMs) are widely used in active optical metasurfaces due to their large refractive index contrast and fast and stable phase-change properties. In this paper, an electrically reconfigurable plasmonic metasurface based on the PCM Sb₂S₃ is proposed to achieve nonvolatile, reversible, and fast optical modulation in the near-infrared range. The designed metasurface can redshift the surface plasmon resonance peak from 1320 to 1480 nm through the phase transition of Sb₂S₃ from amorphous to crystalline states. In addition, we further experimentally design an electrically reconfigurable platform. In a 30 μm × 30 μm region, the phase state of Sb₂S₃ with a thickness of 60 nm is successfully and reversibly changed, which contributes to the dynamic modulation of gold gratings. This work has great application potential in reconfigurable optical filters and communication systems and adaptive optical imaging and sensing.

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基于相变材料Sb2S3的电可重构等离子体超表面

相变材料以其大的折射率对比度和快速稳定的相变特性被广泛应用于有源光学超表面。本文提出了一种基于PCM Sb2S3的电可重构等离子体超表面，以实现近红外范围内的非易失性、可逆性和快速光调制。所设计的超表面可以通过Sb2S3从非晶态到晶态的相变，使表面等离子体共振峰从1320 nm红移到1480 nm。此外，我们进一步实验设计了一个电可重构平台。在30 μm × 30 μm范围内，成功地可逆地改变了厚度为60 nm的Sb2S3的相态，实现了金光栅的动态调制。该工作在可重构光滤光片与通信系统、自适应光学成像与传感等方面具有很大的应用潜力。

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

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.