Beyond the Hybridization Effects in Plasmonic Nanoclusters: Diffraction-Induced Enhanced Absorption and Scattering

Beyond the Hybridization Effects in Plasmonic Nanoclusters: Diffraction-Induced Enhanced Absorption and Scattering
Title:
Beyond the Hybridization Effects in Plasmonic Nanoclusters: Diffraction-Induced Enhanced Absorption and Scattering
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Publication Date:
03 September 2013
Citation:
Rahmani, M., Miroshnichenko, A. E., Lei, D. Y., Luk'yanchuk, B., Tribelsky, M. I., Kuznetsov, A. I., Kivshar, Y. S., Francescato, Y., Giannini, V., Hong, M. and Maier, S. A. (2014), Beyond the Hybridization Effects in Plasmonic Nanoclusters: Diffraction-Induced Enhanced Absorption and Scattering. Small, 10: 576–583. doi: 10.1002/smll.201301419
Abstract:
We demonstrate, both theoretically and experimentally, that Young’s interference can be observed in plasmonic structures when two or three nanoparticles with separation on the order of the wavelength are illuminated simultaneously by a plane wave. This effect leads to the formation of intermediate-field hybridized modes with a character distinct of those mediated by near-field and far-field radiative effects. We reveal the physical mechanism for the enhancement of absorption and scattering of light due to plasmonic Young’s interference, which we explain through a redistribution of the Poynting vector field and the formation of near-field subwavelength optical vortices.
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Description:
This is the pre-peer reviewed version of the following article: Rahmani, M., Miroshnichenko, A. E., Lei, D. Y., Luk'yanchuk, B., Tribelsky, M. I., Kuznetsov, A. I., Kivshar, Y. S., Francescato, Y., Giannini, V., Hong, M. and Maier, S. A. (2014), Beyond the Hybridization Effects in Plasmonic Nanoclusters: Diffraction-Induced Enhanced Absorption and Scattering. Small, 10: 576–583. doi: 10.1002/smll.201301419, which has been published in final form at http://dx.doi.org/10.1002/smll.201301419. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
ISSN:
1613-6810
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