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Doubling the Efficiency of Third Harmonic Generation by Positioning ITO Nanocrystals into the Hot-Spot of Plasmonic Gap-Antennas
Abstract
We incorporate dielectric indium tin oxide nanocrystals into the hot-spot of gold nanogap-antennas and perform third harmonic spectroscopy on these hybrid nanostructure arrays. The combined system shows a 2-fold increase of the radiated third harmonic intensity when compared to bare gold antennas. In order to identify the origin of the enhanced nonlinear response we perform finite element simulations of the nanostructures, which are in excellent agreement with our measurements. We find that the third harmonic signal enhancement is mainly related to changes in the linear optical properties of the plasmonic antenna resonances when the ITO nanocrystals are incorporated. Furthermore, the dominant source of the third harmonic is found to be located in the gold volume of the plasmonic antennas.
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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
Beiträge zur Optik trüber Medien, speziell kolloidaler Metallösungen
Mie, G. (1908) · Annalen der Physik · doi:10.1002/andp.19083300302 · Cited by 11,537
Campagnola, P. J., & Loew, L. M. (2003) · Nature Biotechnology · doi:10.1038/nbt894 · Cited by 1,326
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
Spatiotemporal light control with active metasurfaces
Shaltout, A. M., Shalaev, V. M., & Brongersma, M. L. (2019) · Science · doi:10.1126/science.aat3100 · Cited by 1,020
Non-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
Grinblat, G., Li, Y., Nielsen, M. P., Oulton, R. F., & Maier, S. A. (2017) · ACS Nano · doi:10.1021/acsnano.6b07568 · Cited by 266
Metadata
- Authors
- Metzger, B., Hentschel, M., Schumacher, T., Lippitz, M., Ye, X., Murray, C. B., Knabe, B., Buse, K., & Giessen, H.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-04-17
- Volume
- 14
- Issue
- 5
- Pages
- 2867-2872
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2015069831
- Cited by
- 174
- References
- 3
- FWCI
- 11.92
- Type
- journal article
- Language
- en
- Open access
- closed
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- The paper
- Metzger, B., Hentschel, M., Schumacher, T., Lippitz, M., Ye, X., Murray, C. B., Knabe, B., Buse, K., & Giessen, H. (2014). Doubling the Efficiency of Third Harmonic Generation by Positioning ITO Nanocrystals into the Hot-Spot of Plasmonic Gap-Antennas. Nano Letters. https://doi.org/10.1021/nl500913t
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