标题： 表面等离子体耦合的调制-一维表面粗糙度 显示英文标题

标题： Modulation of surface plasmon coupling-in by one-dimensional surface corrugation

摘要： 表面等离子体极化激元因其在亚波长光学、光产生和非破坏性传感方面的潜力，最近引起了科学界新的兴趣。由于它们本质上与金属表面结合在一起，因此无法被自由传播的光直接激发，这使得光-等离子体耦合效率成为任何等离子体设备成功的关键因素。本文介绍了一项关于通过一维表面粗糙度调制（增强或抑制）这种耦合效率的综合研究。我们的方法基于简单的波干涉，并能够做出定量预测，这些预测已在近红外和电信波段得到了实验验证。 显示英文摘要

摘要： Surface plasmon-polaritons have recently attracted renewed interest in the scientific community for their potential in sub-wavelength optics, light generation and non-destructive sensing. Given that they cannot be directly excited by freely propagating light due to their intrinsical binding to the metal surface, the light-plasmon coupling efficiency becomes of crucial importance for the success of any plasmonic device. Here we present a comprehensive study on the modulation (enhancement or suppression) of such coupling efficiency by means of one-dimensional surface corrugation. Our approach is based on simple wave interference and enables us to make quantitative predictions which have been experimentally confirmed at both the near infra-red and telecom ranges.