The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
Resolving the electromagnetic mechanism of surface-enhanced light scattering at single hot spots
Open accessAbstract
Light scattering at nanoparticles and molecules can be dramatically enhanced in the 'hot spots' of optical antennas, where the incident light is highly concentrated. Although this effect is widely applied in surface-enhanced optical sensing, spectroscopy and microscopy, the underlying electromagnetic mechanism of the signal enhancement is challenging to trace experimentally. Here we study elastically scattered light from an individual object located in the well-defined hot spot of single antennas, as a new approach to resolve the role of the antenna in the scattering process. We provide experimental evidence that the intensity elastically scattered off the object scales with the fourth power of the local field enhancement provided by the antenna, and that the underlying electromagnetic mechanism is identical to the one commonly accepted in surface-enhanced Raman scattering. We also measure the phase shift of the scattered light, which provides a novel and unambiguous fingerprint of surface-enhanced light scattering. Light scattering from nanoscale objects can be dramatically enhanced in the proximity of optical antennas. Here, by studying the amplitude and phase of the light scattered from a tip located at the hot spot of an antenna, the underlying electromagnetic mechanism of this enhancement is resolved.
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Cites
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Cited by
Surface plasmon resonance in gold nanoparticles: a review
Amendola, V., Pilot, R., Frasconi, M., Maragò, O. M., & Iatì, M. A. (2017) · Journal of Physics: Condensed Matter · doi:10.1088/1361-648x/aa60f3 · Cited by 1,905
Chemical mapping of a single molecule by plasmon-enhanced Raman scattering
Zhang, R., Zhang, Y., Dong, Z. C., Jiang, S., Zhang, C., Chen, L. G., Zhang, L., Liao, Y., Aizpurua, J., Luo, Y., et al. (2013) · Nature · doi:10.1038/nature12151 · Cited by 1,770
Self-citationNon-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low heat conversion
Caldarola, M., Albella, P., Cortés, E., Rahmani, M., Roschuk, T., Grinblat, G., Oulton, R. F., Bragas, A. V., & Maier, S. A. (2015) · Nature Communications · doi:10.1038/ncomms8915 · Cited by 520
Self-citationAdato, R., & Altug, H. (2013) · Nature Communications · doi:10.1038/ncomms3154 · Cited by 406
Molecular cavity optomechanics as a theory of plasmon-enhanced Raman scattering
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Metadata
- Authors
- Alonso-González, P., Albella, P., Schnell, M., Chen, J., Huth, F., García-Etxarri, A., Casanova, F., Golmar, F., Arzubiaga, L., Hueso, L. E., Aizpurua, J., & Hillenbrand, R.
- Venue
- Nature Communications
- Published
- 2012-02-21
- Volume
- 3
- Issue
- 1
- Pages
- 684-684
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W1967351828
- Cited by
- 252
- References
- 36
- FWCI
- 16.04
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Alonso-González, P., Albella, P., Schnell, M., Chen, J., Huth, F., García-Etxarri, A., Casanova, F., Golmar, F., Arzubiaga, L., Hueso, L. E., Aizpurua, J., & Hillenbrand, R. (2012). Resolving the electromagnetic mechanism of surface-enhanced light scattering at single hot spots. Nature Communications. https://doi.org/10.1038/ncomms1674
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