title: High-Contrast Gratings based Spoof Surface Plasmons.
abstract: In this work, we explore the existence of spoof surface plasmons (SSPs) supported by deep-subwavelength high-contrast gratings (HCGs) on a perfect electric conductor plane. The dispersion relation of the HCGs-based SSPs is derived analyt- ically by combining multimode network theory with rigorous mode matching method, which has nearly the same form with and can be degenerated into that of the SSPs arising from deep-subwavelength metallic gratings (MGs). Numerical simula- tions validate the analytical dispersion relation and an effective medium approximation is also presented to obtain the same analytical dispersion formula. This work sets up a unified theoretical framework for SSPs and opens up new vistas in surface plasmon optics.
authors.affiliation: Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China.|State Key Laboratory of Millimeter Waves, Southeast University, Nanjing, 210096, China.|Department of Physics, College of Liberal Arts and Sciences, Arizona State University, 871504, USA.
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Li
authors.affiliation: Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China.
authors.forename: Liangliang
authors.initials: L
authors.lastname: Liu
authors.affiliation: Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China.
authors.forename: Bingzheng
authors.initials: B
authors.lastname: Xu
authors.affiliation: Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China.
authors.forename: Pingping
authors.initials: P
authors.lastname: Ning
authors.affiliation: Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China.
authors.forename: Chen
authors.initials: C
authors.lastname: Chen
authors.affiliation: Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China.
authors.forename: Jia
authors.initials: J
authors.lastname: Xu
authors.affiliation: Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China.
authors.forename: Xinlei
authors.initials: X
authors.lastname: Chen
authors.affiliation: Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China.
authors.forename: Changqing
authors.initials: C
authors.lastname: Gu
authors.affiliation: Department of Physics, College of Liberal Arts and Sciences, Arizona State University, 871504, USA.
authors.forename: Quan
authors.initials: Q
authors.lastname: Qing
mesh_terms: D008962:Models, Theoretical