Surface plasmonic sensors have been widely used in biology, chemistry, and environment monitoring. These sensors exhibit extraordinary sensitivity based on surface plasmon resonance (SPR) or localized surface plasmon resonance (LSPR) effects, and they have found commercial applications. In this review, we present recent progress in the field of surface plasmonic sensors, mainly in the configurations of planar metastructures and optical-fiber waveguides. In the metastructure platform, the optical sensors based on LSPR, hyperbolic dispersion, Fano resonance, and two-dimensional (2D) materials integration are introduced. The optical-fiber sensors integrated with LSPR/SPR structures and 2D materials are summarized. We also introduce the recent advances in quantum plasmonic sensing beyond the classical shot noise limit. The challenges and opportunities in this field are discussed.

中文翻译：

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传感机制及近期应用

表面等离子体传感器已广泛应用于生物学、化学和环境监测。这些传感器基于表面等离子体共振 (SPR) 或局部表面等离子体共振 (LSPR) 效应表现出非凡的灵敏度，并且它们已经找到了商业应用。在这篇综述中，我们介绍了表面等离子体传感器领域的最新进展，主要是平面元结构和光纤波导的配置。在元结构平台中，引入了基于LSPR、双曲色散、Fano共振和二维（2D）材料集成的光学传感器。总结了与 LSPR/SPR 结构和 2D 材料集成的光纤传感器。我们还介绍了超越经典散粒噪声限制的量子等离子体传感的最新进展。