Interfacial Mode Interactions of Surface Plasmon Polaritons on Gold Nanodome Films

被引:6
作者
Ko, Woo Ri [1 ]
Zhang, Jinlin [2 ]
Park, Hyeong-Ho [3 ]
Nah, Junghyo [4 ]
Suh, Jae Yong [2 ]
Lee, Min Hyung [1 ]
机构
[1] Kyung Hee Univ, Dept Appl Chem, Yongin 17104, Gyeonggi, South Korea
[2] Michigan Technol Univ, Dept Phys, Houghton, MI 49931 USA
[3] Korea Adv Nanofab Ctr, Technol Dev Div, Suwon 16229, Gyeonggi, South Korea
[4] Chungnam Natl Univ, Dept Elect Engn, Daejeon 34134, South Korea
基金
新加坡国家研究基金会;
关键词
anodized aluminum oxide; nanopatterning; metallic nanostructures; surface plasmon; plasmonic crystals; NANOSTRUCTURES; ARRAYS; METAMATERIALS; LITHOGRAPHY; RESONANCE; ALUMINA; LIGHT;
D O I
10.1021/acsami.6b02243
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
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.
引用
收藏
页码:20516 / 20521
页数:6
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