Open AccessDynamic tailoring of surface plasmon polaritons through incident angle modulation
Author(s) -
Peizhen Qiu,
Dawei Zhang,
Ming Jing,
Taiguo Lu,
Binbin Yu,
Qiwen Zhan,
Songlin Zhuang
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.009772
Subject(s) - optics , surface plasmon polariton , surface plasmon , modulation (music) , bessel beam , physics , bessel function , finite difference time domain method , materials science , plasmon , acoustics
Dynamic tailoring of the propagating surface plasmon polaritons (SPPs) through incident angle modulation is proposed and numerically demonstrated. The generation and tailoring mechanism of the SPPs are discussed. The relationship formula between the incident angle and the generated SPP wave vector direction is theoretically derived. The correctness of the formula is verified with three different approaches using finite difference time domain method. Using this formula, the generated SPP wave vector direction can be precisely modulated by changing the incident angle. The precise modulation results of two dimensional Bessel-like SPP beam and SPP bottle beam array are given. The results can deepen the understanding of the generation and modulation mechanism of the SPPs.