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表面等离激元——机理、应用与展望
Surface plasmons - mechanisms, applications and perspectives
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摘要: 等离激元光子学（plasmonics）的研究内容是金属纳米结构独特的光学性质及其应用．随着纳米科技的进步，等离激元光子学已经迅速发展成为一门新兴学科，在生物、化学、能源、信息等领域具有重要的应用前景．文章主要介绍表面等离激元（surfaceplasmons，SPS）的一些基本物理性质，包括局域的表面等离激元（10calized surfaceplas-mon，LSP）和传导的表面等离激元（propagating surface plasmonpolariton，SPP），文章还介绍了表面等离激元的几个重要的应用方向，例如生物／化学传感器、表面等离激元激光、光开关器件以及表面等离激元光逻辑运算，等等．Abstract: With the fast development of nanoscience and nanotechnology, research on the unique optical properties of metal nanostructures and related applications has rapidly grown into an important branch discipline of nano-optics, known as plasmonics, with abundant content and extensive applications in many fields such as biology, chemistry, renewab｜e energy, and information technology. This article introduces some basic concepts of surface plasmons, including localized surface plasmons and propagating surface plasmon polaritons. An overview of various important applications in bio/chemo sensing, nanolasers, ultrafast optical switches, surface plasmon-based logic, and so forth is presented.
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