Enhanced extraordinary optical transmission (EOT) through arrays of bridged nanohole pairs and their sensing applications
Ooi, Boon S.
KAUST DepartmentAdvanced Nanofabrication, Imaging and Characterization Core Lab
Applied Mathematics and Computational Science Program
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Imaging and Characterization Core Lab
Materials Science and Engineering Program
Nanofabrication Core Lab
Physical Sciences and Engineering (PSE) Division
Waves in Complex Media Research Group
Permanent link to this recordhttp://hdl.handle.net/10754/563218
MetadataShow full item record
AbstractExtraordinary optical transmission (EOT) through arrays of gold nanoholes was studied with light across the visible to the near-infrared spectrum. The EOT effect was found to be improved by bridging pairs of nanoholes due to the concentration of the electromagnetic field in the slit between the holes. The geometrical shape and separation of the holes in these pairs of nanoholes affected the intensity of the transmission and the wavelength of resonance. Changing the geometrical shapes of these nanohole pairs from triangles to circles to squares leads to increased transmission intensity as well as red-shifting resonance wavelengths. The performance of bridged nanohole pairs as a plasmonic sensor was investigated. The bridged nanohole pairs were able to distinguish methanol, olive oil and microscope immersion oil for the different surface plasmon resonance in transmission spectra. Numerical simulation results were in agreement with experimental observations. © 2014 the Partner Organisations.
PublisherRoyal Society of Chemistry (RSC)
CollectionsNanofabrication Core Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Photonics Laboratory; Materials Science and Engineering Program; Electrical Engineering Program; Physical Sciences and Engineering (PSE) Division; Applied Mathematics and Computational Science Program; Imaging and Characterization Core Lab; Articles
- Enhanced extraordinary optical transmission and refractive-index sensing sensitivity in tapered plasmonic nanohole arrays.
- Authors: Chen Z, Li P, Zhang S, Chen Y, Liu P, Duan H
- Issue date: 2019 Aug 16
- A new generation of sensors based on extraordinary optical transmission.
- Authors: Gordon R, Sinton D, Kavanagh KL, Brolo AG
- Issue date: 2008 Aug
- High-throughput nanohole array based system to monitor multiple binding events in real time.
- Authors: Ji J, O'Connell JG, Carter DJ, Larson DN
- Issue date: 2008 Apr 1
- Bridged-bowtie and cross bridged-bowtie nanohole arrays as SERS substrates with hotspot tunability and multi-wavelength SERS response.
- Authors: Gupta N, Dhawan A
- Issue date: 2018 Jul 9
- Enhanced fluorescence from arrays of nanoholes in a gold film.
- Authors: Brolo AG, Kwok SC, Moffitt MG, Gordon R, Riordon J, Kavanagh KL
- Issue date: 2005 Oct 26