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Probing the mechanisms of large Purcell enhancement in plasmonic nanoantennas

Publication ,  Journal Article
Akselrod, GM; Argyropoulos, C; Hoang, TB; Ciracì, C; Fang, C; Huang, J; Smith, DR; Mikkelsen, MH
Published in: Nature Photonics
November 5, 2014

To move nanophotonic devices such as lasers and single-photon sources into the practical realm, a challenging list of requirements must be met, including directional emission, room-temperature and broadband operation, high radiative quantum efficiency and a large spontaneous emission rate. To achieve these features simultaneously, a platform is needed for which the various decay channels of embedded emitters can be fully understood and controlled. Here, we show that all these device requirements can be satisfied by a film-coupled metal nanocube system with emitters embedded in the dielectric gap region. Fluorescence lifetime measurements on ensembles of emitters reveal spontaneous emission rate enhancements exceeding 1,000 while maintaining high quantum efficiency (>0.5) and directional emission (84% collection efficiency). Using angle-resolved fluorescence measurements, we independently determine the orientations of emission dipoles in the nanoscale gap. Incorporating this information with the three-dimensional spatial distribution of dipoles into full-wave simulations predicts time-resolved emission in excellent agreement with experiments.

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Published In

Nature Photonics

DOI

EISSN

1749-4893

ISSN

1749-4885

Publication Date

November 5, 2014

Volume

8

Issue

11

Start / End Page

835 / 840

Related Subject Headings

  • Optoelectronics & Photonics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Akselrod, G. M., Argyropoulos, C., Hoang, T. B., Ciracì, C., Fang, C., Huang, J., … Mikkelsen, M. H. (2014). Probing the mechanisms of large Purcell enhancement in plasmonic nanoantennas. Nature Photonics, 8(11), 835–840. https://doi.org/10.1038/nphoton.2014.228
Akselrod, G. M., C. Argyropoulos, T. B. Hoang, C. Ciracì, C. Fang, J. Huang, D. R. Smith, and M. H. Mikkelsen. “Probing the mechanisms of large Purcell enhancement in plasmonic nanoantennas.” Nature Photonics 8, no. 11 (November 5, 2014): 835–40. https://doi.org/10.1038/nphoton.2014.228.
Akselrod GM, Argyropoulos C, Hoang TB, Ciracì C, Fang C, Huang J, et al. Probing the mechanisms of large Purcell enhancement in plasmonic nanoantennas. Nature Photonics. 2014 Nov 5;8(11):835–40.
Akselrod, G. M., et al. “Probing the mechanisms of large Purcell enhancement in plasmonic nanoantennas.” Nature Photonics, vol. 8, no. 11, Nov. 2014, pp. 835–40. Scopus, doi:10.1038/nphoton.2014.228.
Akselrod GM, Argyropoulos C, Hoang TB, Ciracì C, Fang C, Huang J, Smith DR, Mikkelsen MH. Probing the mechanisms of large Purcell enhancement in plasmonic nanoantennas. Nature Photonics. 2014 Nov 5;8(11):835–840.

Published In

Nature Photonics

DOI

EISSN

1749-4893

ISSN

1749-4885

Publication Date

November 5, 2014

Volume

8

Issue

11

Start / End Page

835 / 840

Related Subject Headings

  • Optoelectronics & Photonics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 02 Physical Sciences
  • 01 Mathematical Sciences