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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 15 — May. 20, 2009
  • pp: 2924–2931

Design study for transmission improvement of resonant surface plasmons using dielectric diffraction gratings

Seung Ho Choi, Sung June Kim, and Kyung Min Byun  »View Author Affiliations


Applied Optics, Vol. 48, Issue 15, pp. 2924-2931 (2009)
http://dx.doi.org/10.1364/AO.48.002924


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Abstract

A transmission-type surface plasmon resonance configuration with dielectric gratings regularly patterned on a silver film was investigated with the aim of enhancing the diffraction efficiency of radiative surface plasmons. The theoretical work was conducted using rigorous coupled-wave analysis in terms of first order diffraction efficiency and conversion efficiency (CE). The results show that pyramid gratings can produce a higher transmittance compared with other grating profiles. Design optimization of the pyramid grating at a wide range of grating thicknesses and periods resulted in a maximum transmittance that was larger than 77% and a peak CE of about 85%. This study demonstrates the potential of using transmitted surface plasmon waves in various optical devices, such as optical biosensors, optical imaging systems, and polarization filters.

© 2009 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(240.6680) Optics at surfaces : Surface plasmons
(310.0310) Thin films : Thin films

ToC Category:
Diffraction and Gratings

History
Original Manuscript: December 15, 2008
Revised Manuscript: March 30, 2009
Manuscript Accepted: April 23, 2009
Published: May 15, 2009

Virtual Issues
Vol. 4, Iss. 7 Virtual Journal for Biomedical Optics

Citation
Seung Ho Choi, Sung June Kim, and Kyung Min Byun, "Design study for transmission improvement of resonant surface plasmons using dielectric diffraction gratings," Appl. Opt. 48, 2924-2931 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-15-2924

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