Nanoantenna array-induced fluorescence enhancement and reduced lifetimes

Reuben M. Bakker, Vladimir P. Drachev, Zhengtong Liu, Hsiao Kuan Yuan, Rasmus H. Pedersen, Alexandra Boltasseva, Jiji Chen, Joseph Irudayaraj, Alexander V. Kildishev, Vladimir M. Shalaev

Research output: Contribution to journalArticle

Abstract

Enhanced fluorescence is observed from dye molecules interacting with optical nanoantenna arrays. Elliptical gold dimers form individual nanoantennae with tunable plasmon resonances depending upon the geometry of the two particles and the size of the gap between them. A fluorescent dye, Rhodamine 800, is uniformly embedded in a dielectric host that coats the nanoantennae. The nanoantennae act to enhance the dye absorption. In turn, emission from the dye drives the plasmon resonance of the antennae; the nanoantennae act to enhance the fluorescence signal and change the angular distribution of emission. These effects depend upon the overlap of the plasmon resonance with the excitation wavelength and the fluorescence emission band. A decreased fluorescence lifetime is observed along with highly polarized emission that displays the characteristics of the nanoantenna's dipole mode. Being able to engineer the emission of the dye-nanoantenna system is important for future device applications in both bio-sensing and nanoscale optoelectronic integration.

Original languageEnglish (US)
Article number125022
JournalNew Journal of Physics
Volume10
DOIs
StatePublished - Dec 16 2008
Externally publishedYes

Fingerprint

dyes
life (durability)
fluorescence
augmentation
rhodamine
engineers
angular distribution
antennas
dimers
gold
dipoles
geometry
wavelengths
excitation
molecules

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Bakker, R. M., Drachev, V. P., Liu, Z., Yuan, H. K., Pedersen, R. H., Boltasseva, A., ... Shalaev, V. M. (2008). Nanoantenna array-induced fluorescence enhancement and reduced lifetimes. New Journal of Physics, 10, [125022]. https://doi.org/10.1088/1367-2630/10/12/125022

Nanoantenna array-induced fluorescence enhancement and reduced lifetimes. / Bakker, Reuben M.; Drachev, Vladimir P.; Liu, Zhengtong; Yuan, Hsiao Kuan; Pedersen, Rasmus H.; Boltasseva, Alexandra; Chen, Jiji; Irudayaraj, Joseph; Kildishev, Alexander V.; Shalaev, Vladimir M.

In: New Journal of Physics, Vol. 10, 125022, 16.12.2008.

Research output: Contribution to journalArticle

Bakker, RM, Drachev, VP, Liu, Z, Yuan, HK, Pedersen, RH, Boltasseva, A, Chen, J, Irudayaraj, J, Kildishev, AV & Shalaev, VM 2008, 'Nanoantenna array-induced fluorescence enhancement and reduced lifetimes', New Journal of Physics, vol. 10, 125022. https://doi.org/10.1088/1367-2630/10/12/125022
Bakker RM, Drachev VP, Liu Z, Yuan HK, Pedersen RH, Boltasseva A et al. Nanoantenna array-induced fluorescence enhancement and reduced lifetimes. New Journal of Physics. 2008 Dec 16;10. 125022. https://doi.org/10.1088/1367-2630/10/12/125022
Bakker, Reuben M. ; Drachev, Vladimir P. ; Liu, Zhengtong ; Yuan, Hsiao Kuan ; Pedersen, Rasmus H. ; Boltasseva, Alexandra ; Chen, Jiji ; Irudayaraj, Joseph ; Kildishev, Alexander V. ; Shalaev, Vladimir M. / Nanoantenna array-induced fluorescence enhancement and reduced lifetimes. In: New Journal of Physics. 2008 ; Vol. 10.
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