FDTD analysis of structured metallic nanohole films for LSPR-based biosensor

Fairus Atida Said, P. Susthitha Menon N V Visvanathan, T. Kalaivani, Mohd Ambri Mohamed, Alam Abedini, Sahbudin Shaari, Burhanuddin Yeop Majlis, V. Retnasamy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

We numerically investigated 3-dimensional (3D) sub-wavelength structured metallic nanohole films with various thicknesses using wavelength interrogation technique. The reflectivity and full-width at half maximum (FWHM) of the localized surface plasmon resonance (LSPR) spectra was calculated using finite-difference time domain (FDTD) method. Results showed that a 100nm-thick silver nanohole gave higher reflectivity of 92% at the resonance wavelength of 644nm. Silver, copper and aluminum structured thin films showed only a small difference in the reflectivity spectra for various metallic film thicknesses whereas gold thin films showed a reflectivity decrease as the film thickness was increased. However, all four types of metallic nanohole films exhibited increment in FWHM (broader curve) and the resonance wavelength was red-shifted as the film thicknesses were decreased.

Original languageEnglish
Title of host publicationRSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781479985500
DOIs
Publication statusPublished - 11 Dec 2015
Event10th IEEE Regional Symposium on Micro and Nano Electronics, RSM 2015 - Kuala Terengganu, Malaysia
Duration: 19 Aug 201521 Aug 2015

Other

Other10th IEEE Regional Symposium on Micro and Nano Electronics, RSM 2015
CountryMalaysia
CityKuala Terengganu
Period19/8/1521/8/15

Fingerprint

time domain analysis
Metallic films
Time domain analysis
Surface plasmon resonance
bioinstrumentation
surface plasmon resonance
Biosensors
reflectance
Film thickness
Wavelength
film thickness
Full width at half maximum
Silver
wavelengths
silver
Thin films
Finite difference time domain method
interrogation
thin films
Aluminum

Keywords

  • aluminum
  • copper
  • FDTD
  • FWHM
  • gold
  • LSPR
  • metallic nanohole
  • Reflectivity
  • silver

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Electrical and Electronic Engineering

Cite this

Said, F. A., N V Visvanathan, P. S. M., Kalaivani, T., Mohamed, M. A., Abedini, A., Shaari, S., ... Retnasamy, V. (2015). FDTD analysis of structured metallic nanohole films for LSPR-based biosensor. In RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings [7355024] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/RSM.2015.7355024

FDTD analysis of structured metallic nanohole films for LSPR-based biosensor. / Said, Fairus Atida; N V Visvanathan, P. Susthitha Menon; Kalaivani, T.; Mohamed, Mohd Ambri; Abedini, Alam; Shaari, Sahbudin; Yeop Majlis, Burhanuddin; Retnasamy, V.

RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. 7355024.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Said, FA, N V Visvanathan, PSM, Kalaivani, T, Mohamed, MA, Abedini, A, Shaari, S, Yeop Majlis, B & Retnasamy, V 2015, FDTD analysis of structured metallic nanohole films for LSPR-based biosensor. in RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings., 7355024, Institute of Electrical and Electronics Engineers Inc., 10th IEEE Regional Symposium on Micro and Nano Electronics, RSM 2015, Kuala Terengganu, Malaysia, 19/8/15. https://doi.org/10.1109/RSM.2015.7355024
Said FA, N V Visvanathan PSM, Kalaivani T, Mohamed MA, Abedini A, Shaari S et al. FDTD analysis of structured metallic nanohole films for LSPR-based biosensor. In RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings. Institute of Electrical and Electronics Engineers Inc. 2015. 7355024 https://doi.org/10.1109/RSM.2015.7355024
Said, Fairus Atida ; N V Visvanathan, P. Susthitha Menon ; Kalaivani, T. ; Mohamed, Mohd Ambri ; Abedini, Alam ; Shaari, Sahbudin ; Yeop Majlis, Burhanuddin ; Retnasamy, V. / FDTD analysis of structured metallic nanohole films for LSPR-based biosensor. RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015.
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AU - N V Visvanathan, P. Susthitha Menon

AU - Kalaivani, T.

AU - Mohamed, Mohd Ambri

AU - Abedini, Alam

AU - Shaari, Sahbudin

AU - Yeop Majlis, Burhanuddin

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N2 - We numerically investigated 3-dimensional (3D) sub-wavelength structured metallic nanohole films with various thicknesses using wavelength interrogation technique. The reflectivity and full-width at half maximum (FWHM) of the localized surface plasmon resonance (LSPR) spectra was calculated using finite-difference time domain (FDTD) method. Results showed that a 100nm-thick silver nanohole gave higher reflectivity of 92% at the resonance wavelength of 644nm. Silver, copper and aluminum structured thin films showed only a small difference in the reflectivity spectra for various metallic film thicknesses whereas gold thin films showed a reflectivity decrease as the film thickness was increased. However, all four types of metallic nanohole films exhibited increment in FWHM (broader curve) and the resonance wavelength was red-shifted as the film thicknesses were decreased.

AB - We numerically investigated 3-dimensional (3D) sub-wavelength structured metallic nanohole films with various thicknesses using wavelength interrogation technique. The reflectivity and full-width at half maximum (FWHM) of the localized surface plasmon resonance (LSPR) spectra was calculated using finite-difference time domain (FDTD) method. Results showed that a 100nm-thick silver nanohole gave higher reflectivity of 92% at the resonance wavelength of 644nm. Silver, copper and aluminum structured thin films showed only a small difference in the reflectivity spectra for various metallic film thicknesses whereas gold thin films showed a reflectivity decrease as the film thickness was increased. However, all four types of metallic nanohole films exhibited increment in FWHM (broader curve) and the resonance wavelength was red-shifted as the film thicknesses were decreased.

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