A simple method for generating unidirectional surface plasmon polariton beams with arbitrary profiles

作者:You, Oubo; Bai, Benfeng*; Wu, Xiaoyu; Zhu, Zhendong; Wang, Qixia
来源:Optics Letters, 2015, 40(23): 5486-5489.
DOI:10.1364/OL.40.005486

摘要

The efficient steering of surface plasmon polariton (SPP) fields is a vital issue in various plasmonic applications, such as plasmonic circuitry. We present a straightforward and efficient method for generating unidirectionally propagating SPP beams with arbitrary amplitude and phase profiles by manipulating.-shaped nanoantennas. As an example, a second-order Hermite-Gauss SPP beam is generated with this method. The near-field distribution of the generated SPP beam is experimentally characterized to validate the effectiveness of the method.

  • 出版日期2015-12-1
  • 单位精密测试技术及仪器国家重点实验室; 清华大学