Free space optical beam coupled to surface plasmonic polariton waves via designed grooves in metal film  

作　　者：陈跃刚 李志远 

机构地区：[1]Department of Physics, Guizhou University [2]Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Science

出　　处：《Chinese Optics Letters》2015年第2期5-8,共4页中国光学快报（英文版）

基　　金：supported by the National 973 Program of China(No.2013CB632704);the Knowledge Innovation Program of the Chinese Academy of Sciences(No.Y1V2013L11);the National Natural Science Foundation of China(Nos.11374357 and 11104041)

摘　　要：Surface plasmonic polariton（SPP） waves with complicated wavefronts have important implications in nanophotonic sciences and applications. The surface electromagnetic wave holography method is applied to designed grooves on a metal surface for coupling a plane wave in free space to complicated wavefront SPP waves.The grooves illuminated by the plane wave incident from free space serve as secondary SPP waves sources, that radiate cylindrical SPP waves. New controllable wavefronts originate from these secondary SPP waves interfering with each other, based on the Huygens–Fresnel principle. Several applications of the method are demonstrated, such as converting coupling waves in free space into focusing SPP waves on a metal surface.Surface plasmonic polariton（SPP） waves with complicated wavefronts have important implications in nanophotonic sciences and applications. The surface electromagnetic wave holography method is applied to designed grooves on a metal surface for coupling a plane wave in free space to complicated wavefront SPP waves.The grooves illuminated by the plane wave incident from free space serve as secondary SPP waves sources, that radiate cylindrical SPP waves. New controllable wavefronts originate from these secondary SPP waves interfering with each other, based on the Huygens–Fresnel principle. Several applications of the method are demonstrated, such as converting coupling waves in free space into focusing SPP waves on a metal surface.

关 键 词：Elastic waves Electromagnetic waves PHONONS PHOTONS Quantum theory Wave propagation WAVEFRONTS 

分 类 号：O53[理学—等离子体物理]