Bifunctional spoof surface plasmon polariton meta-coupler using anisotropic transmissive metasurface

Author:

Wang Dengpan1,Liu Kaiyue2,Li Xiaofeng1,Wang Guangming1,Tang Shiwei3,Cai Tong14ORCID

Affiliation:

1. Air and Missile Defense College, Air Force Engineering University , Xi’an 710051 , China

2. Information Engineering University , Zhengzhou , 450001 , China

3. School of Physical Science and Technology, Ningbo University , Ningbo 315211 , China

4. State Key Laboratory of Modern Optical Instrumentation, The Electromagnetics Academy Zhejiang University , Hangzhou 310027 , China

Abstract

Abstract Tailoring the wavefronts of spoof surface plasmon polaritons (SSPPs) at will, especially with multifunctional integration, is of great importance in near-field photonics. However, conventional SSPP devices suffer from the issues of bulk configurations, limited functionalities, and single operating modes, which are unfavorable for electromagnetic (EM) integration. Here, a novel scheme is proposed to design bifunctional SSPP meta-devices based on the polarization dependent property via satisfying the comprehensive phase distributions and multi-mode momentum matching in a transmission geometry. As proof of the concept, we experimentally demonstrate a bifunctional SSPP meta-device in the microwave regime that can convert incident x- and y-polarized waves to transverse magnetic (TM)-mode SSPP Bessel beams and transverse electric (TE)-mode SSPP focusing beams, respectively. Our findings open a door to achieve near-field manipulation of SSPPs with multi-function and multi-mode integration, which can stimulate the applications of SSPP functional devices, such as near-field sensing, imaging, and on-chip photonics.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology

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