Share Email Print

Proceedings Paper

Effective generation of unidirectional SPP beam with arbitrary profile
Author(s): Oubo You; Benfeng Bai; Xiaoyu Wu; Zhendong Zhu; Qixia Wang
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

The beam formation of SPPs is very important in plasmonics. Different SPP beams could be used for different purposes, such as SPP focusing, non-diffractive SPP wave propagation, efficient SPP coupling, and manipulating particles. Here, we present a straightforward and effective method for generating unidirectionally propagating SPP beams with arbitrary profile in both amplitude and phase by locating the Δ-shaped nanoantennas. The Δ-shape of the nanoantennas is used to achieve unidirectionality of SPPs and the locations of the nanoantennas are controlled to realize arbitrary profile of the excited SPP wave. As examples, several SPP launchers generating different SPP beams are designed with this method. The near-field distribution of the generated SPP beams are also experimentally characterized to validate the effectiveness of this method.

Paper Details

Date Published: 26 April 2016
PDF: 12 pages
Proc. SPIE 9890, Optical Micro- and Nanometrology VI, 98900W (26 April 2016); doi: 10.1117/12.2227668
Show Author Affiliations
Oubo You, Tsinghua Univ. (China)
Benfeng Bai, Tsinghua Univ. (China)
Xiaoyu Wu, Tsinghua Univ. (China)
Zhendong Zhu, Tsinghua Univ. (China)
Qixia Wang, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 9890:
Optical Micro- and Nanometrology VI
Christophe Gorecki; Anand Krishna Asundi; Wolfgang Osten, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?