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Free-Standing Optical Gold Bowtie Nanoantenna with Variable Gap Size for Enhanced Raman Spectroscopy
Abstract
We describe plasmonic interactions in suspended gold bowtie nanoantenna leading to strong electromagnetic field (E) enhancements. Surface-enhanced Raman scattering (SERS) was used to demonstrate the performance of the nanoantenna. In addition to the well-known gap size dependence, up to 2 orders of magnitude additional enhancement is observed with elevated bowties. The overall behavior is described by a SERS enhancement factor exceeding 10(11) along with an anomalously weak power law dependence of E on the gap size in a range from 8 to 50 nm that is attributed to a plasmonic nanocavity effect occurring when the plasmonic interactions enter a strongly coupled regime.
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Cited by
Raman Techniques: Fundamentals and Frontiers
Jones, R. R., Hooper, D. C., Zhang, L., Wolverson, D., & Valev, V. K. (2019) · Nanoscale Research Letters · doi:10.1186/s11671-019-3039-2 · Cited by 804
Shen, Y., Zhou, J., Liu, T., Tao, Y., Jiang, R., Liu, M., Xiao, G., Zhu, J., Zhou, Z.-K., Wang, X., et al. (2013) · Nature Communications · doi:10.1038/ncomms3381 · Cited by 746
Review of SERS Substrates for Chemical Sensing
Mosier-Boss, P. (2017) · Nanomaterials · doi:10.3390/nano7060142 · Cited by 722
Kasani, S., Curtin, K., & Wu, N. (2019) · Nanophotonics · doi:10.1515/nanoph-2019-0158 · Cited by 462
Surface-Enhanced Infrared Spectroscopy Using Nanometer-Sized Gaps
Huck, C., Neubrech, F., Vogt, J., Toma, A., Gerbert, D., Katzmann, J., Härtling, T., & Pucci, A. (2014) · ACS Nano · doi:10.1021/nn500903v · Cited by 225
Metadata
- Authors
- Hatab, N. A., Hsueh, C.-H., Gaddis, A. L., Retterer, S. T., Li, J.-H., Eres, G., Zhang, Z., & Gu, B.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-11-19
- Volume
- 10
- Issue
- 12
- Pages
- 4952-4955
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W1964272111
- Cited by
- 545
- References
- 0
- FWCI
- 16.02
- Type
- journal article
- Language
- en
- Open access
- closed
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- Hatab, N. A., Hsueh, C.-H., Gaddis, A. L., Retterer, S. T., Li, J.-H., Eres, G., Zhang, Z., & Gu, B. (2010). Free-Standing Optical Gold Bowtie Nanoantenna with Variable Gap Size for Enhanced Raman Spectroscopy. Nano Letters. https://doi.org/10.1021/nl102963g
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