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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.

Authors

J. L. Stokes

A. Sarua

J. R. Pugh

N. Dorh

J. W. Munns

P. G. Bassindale

N. Ahmad

A. J. Orr-Ewing

M. J. Cryan



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.

Journal Article Type Article
Publication Date Oct 1, 2015
Journal Journal of the Optical Society of America B
Print ISSN 0740-3224
Electronic ISSN 1520-8540
Publisher Optical Society of America
Peer Reviewed Peer Reviewed
Volume 32
Issue 10
Pages 2158-2163
APA6 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. doi:10.1364/JOSAB.32.002158
DOI https://doi.org/10.1364/JOSAB.32.002158
Keywords Surface plasmons
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


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