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Open AccessArticle

Plasmonic Gold Nanohole Arrays for Surface-Enhanced Sum Frequency Generation Detection

1
State Key Laboratory of Physical Chemistry of Solid Surfaces, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
2
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
*
Authors to whom correspondence should be addressed.
Nanomaterials 2020, 10(12), 2557; https://doi.org/10.3390/nano10122557
Received: 3 December 2020 / Revised: 13 December 2020 / Accepted: 17 December 2020 / Published: 19 December 2020
(This article belongs to the Special Issue Plasmonic Nanostructures and Their Applications)
Nobel metal nanohole arrays have been used extensively in chemical and biological systems because of their fascinating optical properties. Gold nanohole arrays (Au NHAs) were prepared as surface plasmon polariton (SPP) generators for the surface-enhanced sum-frequency generation (SFG) detection of 4-Mercaptobenzonitrile (4-MBN). The angle-resolved reflectance spectra revealed that the Au NHAs have three angle-dependent SPP modes and two non-dispersive localized surface plasmon resonance (LSPR) modes under different structural orientation angles (sample surface orientation). An enhancement factor of ~30 was achieved when the SPP and LSPR modes of the Au NHAs were tuned to match the incident visible (VIS) and output SFG, respectively. This multi-mode matching strategy provided flexible controls and selective spectral windows for surface-enhanced measurements, and was especially useful in nonlinear spectroscopy where more than one light beam was involved. The structural orientation- and power-dependent performance demonstrated the potential of plasmonic NHAs in SFG and other nonlinear sensing applications, and provided a promising surface molecular analysis development platform. View Full-Text
Keywords: surface plasmon polaritons (SPP); localized surface plasmon resonance (LSPR); 4-Mercaptobenzonitrile (4-MBN); enhancement surface plasmon polaritons (SPP); localized surface plasmon resonance (LSPR); 4-Mercaptobenzonitrile (4-MBN); enhancement
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MDPI and ACS Style

Guo, W.; Liu, B.; He, Y.; You, E.; Zhang, Y.; Huang, S.; Wang, J.; Wang, Z. Plasmonic Gold Nanohole Arrays for Surface-Enhanced Sum Frequency Generation Detection. Nanomaterials 2020, 10, 2557. https://doi.org/10.3390/nano10122557

AMA Style

Guo W, Liu B, He Y, You E, Zhang Y, Huang S, Wang J, Wang Z. Plasmonic Gold Nanohole Arrays for Surface-Enhanced Sum Frequency Generation Detection. Nanomaterials. 2020; 10(12):2557. https://doi.org/10.3390/nano10122557

Chicago/Turabian Style

Guo, Wei; Liu, Bowen; He, Yuhan; You, Enming; Zhang, Yongyan; Huang, Shengchao; Wang, Jingjing; Wang, Zhaohui. 2020. "Plasmonic Gold Nanohole Arrays for Surface-Enhanced Sum Frequency Generation Detection" Nanomaterials 10, no. 12: 2557. https://doi.org/10.3390/nano10122557

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