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Exploration of grating-based surface plasmon resonance systems for wave vector matching to enhance plasmon modes and preliminary surface plasmon-enhanced fluorescence interrogation

机译：探索基于光栅的表面等离振子共振系统以进行波矢量匹配以增强等离激元模式和初步表面等离激元增强的荧光询问

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Surface plasmon resonance refers to the collective oscillation of conductance band electrons in a metal. The most common experimental method to excite surface plasmon resonance is with light through a coupling mode (prism, grating, waveguide, etc). The work presented in this thesis uses experimental observations of surface plasmon resonance, bolstered with theoretical, analytical and computational solutions, in order to explain and show applications of the phenomena observed.Chapter 1 introduces surface plasmon resonance by explicating historical interest in the phenomena. Theoretical and experimental results opened the door for surface plasmon resonance to be used as a refractive index sensor (allowing for diagnostics and kinetics studies). Surface plasmon resonance is also associated with a highly localized electric field, which can be used to enhance many spectroscopic techniques like infrared absorption, fluorescence, Raman spectroscopy, and surface chemistry reactions. This chapter will close by looking into the specific information on studies that will be found in subsequent chapters.Chapter 2 reveals information behind a study conducted to increase the localization of light in a surface plasmon resonance system through matching the surface plasmon resonance wave vectors across a thin metal film. As discussed in depth, this matching occurs by shifting the front side optical properties to match the back side (across the metal film), through the use of a high refractive index layer. Finally, this system is probed with refractive index sensing of the new (matched- high refractive index film present) sensor, and native (unmatched- no high refractive index film) sensor.Chapter 3 introduces a study laying ground work in future experiments in our lab pertaining to enhancing photoluminescence with surface plasmon resonance. Preliminary data shows enhanced fluorescence of rhodamine B in poly(methyl methacrylate) thin films due to the films\u27 proximity to metal gratings. Implications of the preliminary findings are explicated and a full study is proposed.
机译：表面等离子体共振是指金属中电导带电子的集体振荡。激发表面等离子体激元共振的最常见实验方法是通过耦合模式（棱镜，光栅，波导等）使光通过。本文的工作是利用表面等离振子共振的实验观察，并结合理论，分析和计算解决方案，以解释和显示所观察到的现象的应用。第一章通过阐述历史对现象的兴趣介绍了表面等离振子共振。理论和实验结果为表面等离子体激元共振用作折射率传感器打开了大门（允许进行诊断和动力学研究）。表面等离子体激元共振还与高度局部化的电场相关，该电场可用于增强许多光谱技术，例如红外吸收，荧光，拉曼光谱和表面化学反应。本章将通过研究在随后各章中发现的特定信息作为结尾。第2章揭示了通过在表面等离子体共振系统中匹配表面等离子体共振波矢量来增加表面等离子体共振系统中光的局限性而进行的一项研究背后的信息。金属薄膜。如深入讨论的那样，通过使用高折射率层使正面光学特性偏移以匹配背面（横跨金属膜）来发生这种匹配。最后，该系统将通过新型（匹配的高折射率薄膜存在）传感器和本机（无匹配的高折射率薄膜）传感器的折射率传感进行探测。第三章介绍了一项研究，该研究为我们未来的实验奠定了基础关于通过表面等离子体共振增强光致发光的实验室。初步数据显示，由于聚甲基丙烯酸甲酯薄膜中的若丹明B靠近金属光栅，因此荧光增强了。初步发现的含义被阐明，并提出了一项完整的研究。

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    Johnson, Michael B.;

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  • 年度 2016
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