title: Adjustable phase resonances in a compound metallic grating with perpendicular cuts.
abstract: We propose a compound metallic grating with perpendicular cuts in each slit and investigate its optical transmission property theoretically. The odd and even waveguide modes exhibit different behaviors when the cuts are set asymmetrically in the slits. Particularly, it is shown that the transmission dips of transmission spectrum for this compound periodic structure can be realized alternately by shifting the position of cuts in the slit. The effect of cut size on the phase resonances in the proposed metallic grating is also identified, and the underlying physics is discussed by the simulated field and phase maps.
authors.affiliation: Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education, School of Computer and Communication, Hunan University, Changsha 410082, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Zhai
authors.forename: Jian-Qiang
authors.initials: JQ
authors.lastname: Liu
authors.forename: Meng-Dong
authors.initials: MD
authors.lastname: He
authors.forename: Ling-Ling
authors.initials: LL
authors.lastname: Wang
authors.forename: Shuangchun
authors.initials: S
authors.lastname: Wen
authors.forename: Dianyuan
authors.initials: D
authors.lastname: Fan
mesh_terms: D000465:Algorithms; D004560:Electricity; D004574:Electromagnetic Fields; D004867:Equipment Design; D008422:Materials Testing; D008670:Metals / Q000737:chemistry*; D008962:Models, Theoretical; D055095:Optics and Photonics; D010825:Physics / Q000379:methods; D012031:Refractometry / Q000295:instrumentation / Q000379:methods*; D020349:Surface Plasmon Resonance; D013499:Surface Properties
chemical_list: D008670:Metals