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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 31, Iss. 5 — May. 1, 2014
  • pp: 1223–1231

Field enhancement and target localization impact on the biosensitivity of nanostructured plasmonic sensors

Maha Chamtouri, Mitradeep Sarkar, Julien Moreau, Mondher Besbes, Hassen Ghalila, and Michael Canva  »View Author Affiliations


JOSA B, Vol. 31, Issue 5, pp. 1223-1231 (2014)
http://dx.doi.org/10.1364/JOSAB.31.001223


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Abstract

Surface plasmon resonance (SPR) biosensors using field enhancement in nanograting surfaces can overcome sensitivity limitations of conventional SPR biosensors. Nevertheless, the correlation of the local field enhancement established in such structures with sensitivity enhancement has not been extensively studied. We present a numerical study of the coupling effect between the various plasmon modes present in nanograting structures with various structural parameters. We give here a quantitative demonstration of the improvement in sensing performance of SPR biosensors by selective localization of the target molecules in the regions where the electromagnetic field intensity is locally enhanced.

© 2014 Optical Society of America

OCIS Codes
(130.6010) Integrated optics : Sensors
(240.6680) Optics at surfaces : Surface plasmons
(280.1415) Remote sensing and sensors : Biological sensing and sensors
(160.4236) Materials : Nanomaterials
(250.5403) Optoelectronics : Plasmonics
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Remote Sensing and Sensors

History
Original Manuscript: December 5, 2013
Revised Manuscript: February 27, 2014
Manuscript Accepted: April 3, 2014
Published: April 30, 2014

Virtual Issues
Vol. 9, Iss. 7 Virtual Journal for Biomedical Optics

Citation
Maha Chamtouri, Mitradeep Sarkar, Julien Moreau, Mondher Besbes, Hassen Ghalila, and Michael Canva, "Field enhancement and target localization impact on the biosensitivity of nanostructured plasmonic sensors," J. Opt. Soc. Am. B 31, 1223-1231 (2014)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-31-5-1223

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