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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 11 — May. 29, 2006
  • pp: 4842–4849

Design optimization of nano-grating surface plasmon resonance sensors

Kyung Hun Yoon, Michael L. Shuler, and Sung June Kim  »View Author Affiliations

Optics Express, Vol. 14, Issue 11, pp. 4842-4849 (2006)

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In this study, we propose nano-grating surface plasmon resonance (NGSPR) sensors and show the design optimization process. NGSPR sensors with line width less than 50 nm show narrow reflection peaks from the excitation of localized surface plasmon polaritons. The wavelength of resonance reflection can be customized by adjusting the grating period. We predict that a refractive index sensitivity of more than 400 nm/RIU can be obtained using an optimized structure. Sharp reflection resonance peaks with FWHM of 0.03 eV will further enhance the sensitivity of the sensors. The simple optical configuration of normal incidence and high refractive index sensitivity make it possible for NGSPR sensors to be used as portable biosensors for high-throughput screening applications.

© 2006 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(130.6010) Integrated optics : Sensors
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

Original Manuscript: March 31, 2006
Revised Manuscript: May 12, 2006
Manuscript Accepted: May 16, 2006
Published: May 29, 2006

Virtual Issues
Vol. 1, Iss. 6 Virtual Journal for Biomedical Optics

Kyung Hun Yoon, Michael L. Shuler, and Sung June Kim, "Design optimization of nano-grating surface plasmon resonance sensors," Opt. Express 14, 4842-4849 (2006)

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