期刊
NANO LETTERS
卷 10, 期 8, 页码 3173-3178出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl102078j
关键词
Nanohole array; enhanced optical transmission; plasmonics; molding; surface plasmon polariton; localized surface plasmon
类别
资金
- National Science Foundation (NSF) [CMMI-0826219, DMR-0705741]
- Northwestern University's Cancer Center for Nanotechnology Excellence (NCI) [U54CA119341]
- NIH [DPIOD003899]
- NSF-MRSEC
- NSF-NSEC
- Keck Foundation
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0826219] Funding Source: National Science Foundation
This paper describes three-dimensional (3D) nanohole arrays whose high optical transmission is mediated more by localized surface plasmon (LSP) excitations than by surface plasmon polaritons (SPPs). First, LSPs on 3D hole arrays lead to optical transmission an order of magnitude higher than 2D planar hole arrays. Second, LSP-meciiated transmission is broadband and more tunable than SPP-enhanced transmission, which is restricted by Bragg coupling. Third. for the first time, two types of surface plasmons can be selectively excited and manipulated on the same plasmonic substrate. This new plasrnonic substrate fabricated by high-throughput nanolithography techniques paves the way for cutting-edge optoelectronic and biomedical applications.
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