Geballe Laboratory for Advanced Materials, Stanford, California 94305, USA.
Nat Mater. 2010 Mar;9(3):193-204. doi: 10.1038/nmat2630. Epub 2010 Feb 19.
The unprecedented ability of nanometallic (that is, plasmonic) structures to concentrate light into deep-subwavelength volumes has propelled their use in a vast array of nanophotonics technologies and research endeavours. Plasmonic light concentrators can elegantly interface diffraction-limited dielectric optical components with nanophotonic structures. Passive and active plasmonic devices provide new pathways to generate, guide, modulate and detect light with structures that are similar in size to state-of-the-art electronic devices. With the ability to produce highly confined optical fields, the conventional rules for light-matter interactions need to be re-examined, and researchers are venturing into new regimes of optical physics. In this review we will discuss the basic concepts behind plasmonics-enabled light concentration and manipulation, make an attempt to capture the wide range of activities and excitement in this area, and speculate on possible future directions.
纳米金属（即等离子体）结构将光集中到深亚波长体积中的前所未有的能力推动了它们在各种纳米光子学技术和研究中的应用。等离子体光集中器可以优雅地将具有衍射极限的介电光学元件与纳米光子结构接口。被动和主动等离子体器件为使用与最先进的电子设备相似尺寸的结构来产生、引导、调制和检测光提供了新途径。通过产生高度受限的光场的能力，需要重新审视光物质相互作用的常规规则，研究人员正在进入光学物理的新领域。在这篇综述中，我们将讨论等离子体增强光集中和操纵的基本概念，试图捕捉该领域的广泛活动和兴奋，并推测可能的未来方向。
