Enhanced optical transmission mediated by localized plasmons in anisotropic, three-dimensional nanohole arrays.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 20698633.
- Also identified by DOI 10.1021/nl102078j and PMC identifier 2921222.
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Abstract
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-mediated 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 plasmonic substrate fabricated by high-throughput nanolithography techniques paves the way for cutting-edge optoelectronic and biomedical applications.
Medical subject headings
- Nanostructures