Purcell enhancement and focusing effects in plasmonic nanoantenna arrays

Stokes, J. L.; Sarua, A.; Pugh, J. R.; Dorh, N.; Munns, J. W.; Bassindale, P. G.; Ahmad, N.; Orr-Ewing, A. J.; Cryan, M. J.

Abstract

This paper presents measured fluorescence results for PMMA dye-coated 5×5 gold plasmonic nanoantenna arrays. We use numerical electromagnetic modeling to show how array size and element spacing can be used to control emitted beam shape and compare this with experimental data. The Friis formula from RF antenna theory is used to calculate the intensity enhancement produced by the array. A figure of merit is then developed, which accounts for the very small mode volume from which the array emission is occurring.

Citation

Stokes, J. L., Sarua, A., Pugh, J. R., Dorh, N., Munns, J. W., Bassindale, P. G., …Cryan, M. J. (2015). Purcell enhancement and focusing effects in plasmonic nanoantenna arrays. Journal of the Optical Society of America B, 32(10), 2158-2163. https://doi.org/10.1364/JOSAB.32.002158

• Journal Article Type: Article
• Acceptance Date: Aug 16, 2015
• Online Publication Date: Sep 24, 2015
• Publication Date: Oct 1, 2015
• Deposit Date: Jun 29, 2018
• Journal: Journal of the Optical Society of America B
• Print ISSN: 0740-3224
• Electronic ISSN: 1520-8540
• Publisher: Optica
• Peer Reviewed: Peer Reviewed
• Volume: 32
• Issue: 10
• Pages: 2158-2163
• DOI: https://doi.org/10.1364/JOSAB.32.002158
• Keywords: Surface plasmons
• Public URL: https://hull-repository.worktribe.com/output/901166
• Publisher URL: https://www.osapublishing.org/josab/abstract.cfm?uri=josab-32-10-2158
• Related Public URLs: https://research-information.bristol.ac.uk/en/publications/purcell-enhancement-and-focusing-effects-in-plasmonic-nanoantenna-arrays(722bb5c2-8cb2-4260-9280-e4616cea384d).html