Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

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

Version 1 : Received: 13 December 2020 / Approved: 15 December 2020 / Online: 15 December 2020 (09:24:28 CET)

A peer-reviewed article of this Preprint also exists.

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. 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.

Journal reference: Nanomaterials 2020, 10, 2557
DOI: 10.3390/nano10122557

Abstract

Nobel metal nanohole arrays have been used extensively in chemical and biological systems due to their fascinating optical properties. Gold nanohole arrays (Au NHAs) were prepared as surface plasmon polaritons (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 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.

Subject Areas

surface plasmon polaritons (SPP); localized surface plasmon resonance (LSPR); 4-Mercaptobenzonitrile (4-MBN); enhancement

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.