University of Oulu

Zhao, Y., Hubarevich, A., Iarossi, M., Borzda, T., Tantussi, F., Huang, J.-A., De, F., Hyperbolic Nanoparticles on Substrate with Separate Optical Scattering and Absorption Resonances: A Dual Function Platform for SERS and Thermoplasmonics. Adv. Optical Mater. 2021, 9, 2100888.

Hyperbolic nanoparticles on substrate with separate optical scattering and absorption resonances : a dual function platform for SERS and thermoplasmonics

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Author: Zhao, Yingqi1; Hubarevich, Aliaksandr1; Iarossi, Marzia1;
Organizations: 1Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy
2Faculty of Medicine, Faculty of Biochemistry and Molecular Medicine, University of Oulu, Aapistie 5 A, Oulu 90220, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 3.1 MB)
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Language: English
Published: John Wiley & Sons, 2021
Publish Date: 2021-09-13


Tuning optical properties of plasmonic nanostructures, including their absorption, scattering, and local-field distribution is of great interest for various applications that rely on optical energy regulated by plasmonic effects. Conventional plasmonic nanostructures enhance light scattering and absorption simultaneously, leading to compromise for either surface-enhanced spectroscopy or thermoplasmonic applications. In this paper, a dual functional platform based on a hyperbolic meta particles (HMP) substrate that exhibits separate and tuneable wavelengths of absorption and scattering resonances for both thermoplasmonics and surface enhanced Raman spectroscopy (SERS), is demonstrated. Significantly, either light-to-heat conversion efficiency at the absorption resonance band or SERS performance at the scattering resonance band of the HMP substrate is improved in comparison to those of plasmonic gold nanoparticles. Taking advantage of the flexible control of the separate scattering and absorption channels, the influence of the absorption resonance band position on the SERS signal is also investigated. The platform shows unique potential for in vitro biosensing in thermal modulation and in situ monitoring.

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Series: Advanced optical materials
ISSN: 2195-1071
ISSN-E: 2195-1071
ISSN-L: 2195-1071
Volume: 9
Issue: 20
Article number: 2100888
DOI: 10.1002/adom.202100888
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
Copyright information: © 2021 The Authors. Advanced Optical Materials published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.