Journal
OPTICS EXPRESS
Volume 24, Issue 7, Pages 7133-7150Publisher
Optica Publishing Group
DOI: 10.1364/OE.24.007133
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Funding
- Russian Science Foundation (RSF) [16-14-00209]
- Russian Science Foundation [16-14-00209] Funding Source: Russian Science Foundation
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New dielectric SERS metamaterial is investigated. The material consists of periodic dielectric bars deposited on the metal substrate. Computer simulations as well as real experiment reveal extraordinary optical reflectance in the proposed metamaterial due to the excitation of the multiple dielectric resonances. We demonstrate the enhancement of the Raman signal from the complex of 5,5'-dithio-bis-[2-nitrobenzoic acid] molecules and gold nanoparticle (DTNB-Au-NP), which is immobilized on the surface of the barshaped dielectric metamaterial. (C) 2016 Optical Society of America
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