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Nanoplasmonic enhancement of single-molecule fluorescence
Open accessAbstract
We demonstrate that the fluorescence rate from a single molecule with near-unity quantum yield can be enhanced by a factor of ≈10 by use of a single laser-irradiated noble metal nanoparticle. The increased fluorescence rate is primarily the result of the local field enhancement. However, at particle–molecule distances shorter than 2 nm, nonradiative decay of the excited molecule due to energy transfer to the metal dominates over the local field enhancement giving rise to fluorescence quenching. These counteracting processes depend on the wavelength-dependent dielectric function of the particle antenna. In this study, we quantitatively compare single-molecule fluorescence enhancement near 80 nm gold and silver nanoparticles excited at a fixed wavelength of λ = 637 nm. In accordance with theory we find similar enhancements for both gold and silver nanoparticles.
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Citations
Cites
Optical Constants of the Noble Metals
Johnson, P. B., & Christy, R. W. (1972) · Physical Review B · doi:10.1103/physrevb.6.4370 · Cited by 20,094
Cited by
Bharadwaj, P., Deutsch, B., & Novotny, L. (2009) · Advances in Optics and Photonics · doi:10.1364/aop.1.000438 · Cited by 1,203
Self-citationEffective Wavelength Scaling for Optical Antennas
Novotny, L. (2007) · Physical Review Letters · doi:10.1103/physrevlett.98.266802 · Cited by 1,121
Self-citationPlasmon-controlled fluorescence: a new paradigm in fluorescence spectroscopy
Lakowicz, J. R., Ray, K., Chowdhury, M., Szmacinski, H., Fu, Y., Zhang, J., & Nowaczyk, K. (2008) · The Analyst · doi:10.1039/b802918k · Cited by 640
Localized Surface Plasmon Resonance Spectroscopy of Triangular Aluminum Nanoparticles
Chan, G. H., Zhao, J., Schatz, G. C., & Van Duyne, R. P. (2008) · The Journal of Physical Chemistry C · doi:10.1021/jp804088z · Cited by 401
Enhancement of Light Extraction from Light Emitting Diodes
Zhmakin, A. I. (2011) · Physics Reports · doi:10.1016/j.physrep.2010.11.001 · Cited by 312
Metadata
- Authors
- Bharadwaj, P., Anger, P., & Novotny, L.
- Venue
- Nanotechnology
- Publisher
- IOP Publishing
- Published
- 2006-12-12
- Volume
- 18
- Issue
- 4
- Pages
- 044017
- ISSN
- 0957-4484 (ISSN-L)
- 1361-6528
- OpenAlex
- W2098584515
- Cited by
- 200
- References
- 1
- FWCI
- 9.51
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Bharadwaj, P., Anger, P., & Novotny, L. (2007). Nanoplasmonic enhancement of single-molecule fluorescence. Nanotechnology. https://doi.org/10.1088/0957-4484/18/4/044017
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
