title: Interfacial Mode Interactions of Surface Plasmon Polaritons on Gold Nanodome Films.
abstract: Hollow metallic nanodome structures were fabricated using anodized aluminum oxide (AAO) nanopores as deposition and sacrificial templates. Individual Au nanodomes inherit the unique shapes of the well-defined AAO membranes whose pedestal cells become square or hexagonal lattices with hemispheres in close proximity. Minimal contact between the hollow nanodomes and the glass substrate provide an identical dielectric medium across the film. The nanodome Au films support surface plasmon polaritons (SPPs) of strong air-Au and weak Au-glass modes in the light transmission dispersions. The mode crossings of distinct SPPs exhibit characteristic energy gaps, which depend on the periodic geometries of the nanostructures.
authors.affiliation: Department of Applied Chemistry, Kyung Hee University , Yongin, Gyeonggi 17104, Korea.
authors.forename: Woo Ri
authors.initials: WR
authors.lastname: Ko
authors.affiliation: Department of Physics, Michigan Technological University , Houghton, Michigan 49931, United States.
authors.forename: Jinlin
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Technology Development Division, Korea Advanced Nanofab Center (KANC) , Suwon, Gyeonggi 16229, Korea.
authors.forename: Hyeong-Ho
authors.initials: HH
authors.lastname: Park
authors.affiliation: Department of Electrical Engineering, Chungnam National University , Daejeon 34134, Korea.
authors.forename: Junghyo
authors.initials: J
authors.lastname: Nah
authors.affiliation: Department of Physics, Michigan Technological University , Houghton, Michigan 49931, United States.
authors.forename: Jae Yong
authors.initials: JY
authors.lastname: Suh
authors.affiliation: Department of Applied Chemistry, Kyung Hee University , Yongin, Gyeonggi 17104, Korea.
authors.forename: Min Hyung
authors.initials: MH
authors.lastname: Lee
keywords: anodized aluminum oxide; metallic nanostructures; nanopatterning; plasmonic crystals; surface plasmon