Flexibility in engineering holey structures and controlling the wave guiding properties in photonic crystal fibers (PCFs) has enabled a wide variety of PCF-based plasmonic structures and devices with attractive application potential. Metal thin films, nanowires, and nanoparticles are embedded for achieving surface plasmon resonance (SPR) or localized SPR within PCF structures. This paper begins with an outline of plasmonic sensing principles. This is followed by an overview of fabrication and experimental investigation of plasmonic PCFs. Reported plasmonic PCF designs are categorized based on their target application areas, including optical/biochemical sensors, polarization splitters, and couplers. Finally, design and fabrication considerations, as well as limitations due to the structural features of PCFs, are discussed.

中文翻译：

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等离子体光子晶体光纤的最新进展：设计、制造和应用

工程多孔结构和控制光子晶体光纤 (PCF) 中的波导特性的灵活性使各种基于 PCF 的等离子体结构和器件具有有吸引力的应用潜力。嵌入金属薄膜、纳米线和纳米粒子以在 PCF 结构内实现表面等离子体共振 (SPR) 或局部 SPR。本文首先概述了等离子体传感原理。接下来是等离子体 PCF 的制造和实验研究的概述。已报告的等离子体 PCF 设计根据其目标应用领域进行分类，包括光学/生化传感器、偏振分离器和耦合器。最后，讨论了设计和制造方面的考虑，以及由于 PCF 的结构特征造成的限制。