Plasmon resonant cavities in vertical nanowire arrays
US8780439B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Mar 1, 2012 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Sep 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/658
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Tunable plasmon resonant cavity arrays in paired parallel nanowire waveguides are presented. Resonances can be observed when the waveguide length is an odd multiple of quarter plasmon wavelengths, consistent with boundary conditions of node and antinode at the ends. Two nanowire waveguides can satisfy the dispersion relation of a planar metal-dielectric-metal waveguide of equivalent width equal to the square field average weighted gap. Confinement factors of over 103 are possible due to plasmon focusing in the inter-wire space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.