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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 19 — Oct. 1, 2007
  • pp: 2834–2836

Surface plasmon resonance biosensor based on electro-optically modulated phase detection

Tzyy-Jiann Wang and Chih-Wuei Hsieh  »View Author Affiliations


Optics Letters, Vol. 32, Issue 19, pp. 2834-2836 (2007)
http://dx.doi.org/10.1364/OL.32.002834


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Abstract

A novel electro-optically modulated surface plasmon resonance (EOMSPR) biosensor based on phase detection by collinear heterodyne interferometry is presented. Its operation is by means of modulating the SPR-induced phase variation by electro-optic effect. Because the relation between the phase change and the applied voltage is highly sensitive to analyte properties, the linear regression slope of this relation can be used in the analyte detection. The detection characteristics of this EOMSPR biosensor are measured, and their dependences on waveguide width and gold-film thickness are discussed. This novel EOMSPR biosensor has attractive features, such as compactness, resolution tunability, and noise reduction.

© 2007 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(130.6010) Integrated optics : Sensors
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Integrated Optics

History
Original Manuscript: June 21, 2007
Revised Manuscript: August 18, 2007
Manuscript Accepted: August 28, 2007
Published: September 25, 2007

Virtual Issues
Vol. 2, Iss. 11 Virtual Journal for Biomedical Optics

Citation
Tzyy-Jiann Wang and Chih-Wuei Hsieh, "Surface plasmon resonance biosensor based on electro-optically modulated phase detection," Opt. Lett. 32, 2834-2836 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-19-2834


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References

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