Abstract
We describe the fabrication and characterisation of arrays of metallic plasmon resonant nanorings, each of which are formed from two semicircles of different radius. We show that using a dual semicircle structure defined by electron beam lithography can result in closely spaced localized plasmon resonant peaks in the visible region, which cannot be achieved using a simpler nanoring structure with one radius. The advantage of producing two closely spaced resonant peaks is a structure that can be used for Raman sensing purposes at two different wavelengths.
Original language | English |
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Pages (from-to) | 1146-1149 |
Number of pages | 3 |
Journal | Microelectronic Engineering |
Volume | 86 |
Issue number | 4-6 |
DOIs | |
Publication status | Published - Apr 2009 |
Keywords
- localized surface plasmon
- electron beam lithography
- metallic plasmon resonant nanorings