Fabrication of crescent-shaped optical antennas
Fabrication of crescent-shaped optical antennas
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DOI：
10.1002/adma.200500063
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发表时间：
2005-09-05
影响因子：
29.4
通讯作者：
Kreiter, M
中科院分区：
文献类型：
--
作者：
Shumaker-Parry, JS;Rochholz, H;Kreiter, M
金属新月形纳米粒子（见图）有望成为具有高度增强和局部近场的高效光学天线。颗粒制造工艺结合了胶体模板、金属膜沉积和离子束铣削。月牙状结构在可见光和近红外波段表现出多个等离子体共振，这些共振与开发有效左手材料的类型相同。
Metal crescent-shaped nanoparticles (see Figure) that are expected to be efficient optical antennas with highly enhanced and localized near-fields are described. The particle-fabrication process combines colloidal templating, metal-film deposition, and ion-beam milling. The crescents exhibit multiple plasmon resonances in the visible and near-infrared that are of the same type as have been proposed for the development of an effective left-handed material.