OSA's Digital Library

Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 3, Iss. 4 — Apr. 23, 2008

Dual-mode surface-plasmon-resonance sensors using angular interrogation

Jing Guo, P. Donald Keathley, and J. T. Hastings  »View Author Affiliations

Optics Letters, Vol. 33, Issue 5, pp. 512-514 (2008)

View Full Text Article

Enhanced HTML    Acrobat PDF (343 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Surface-plasmon-resonance (SPR) sensors are widely used in biological, chemical, medical, and environmental sensing. SPR sensors supporting two surface-plasmon modes can differentiate surface binding interactions from bulk index changes at a single sensing location. We present a new approach to dual-mode SPR sensing that offers improved differentiation between surface and bulk effects. By using an angular interrogation, both long- and short-range surface plasmons are simultaneously excited at the same location and wavelength but at different angles. Initial experiments indicate that angular interrogation offers at least a factor of 3.6 improvement in surface and bulk cross-sensitivity compared to wavelength-interrogated dual-mode SPR sensors.

© 2008 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Optics at Surfaces

Original Manuscript: December 12, 2007
Revised Manuscript: January 22, 2008
Manuscript Accepted: January 24, 2008
Published: February 28, 2008

Virtual Issues
Vol. 3, Iss. 4 Virtual Journal for Biomedical Optics

Jing Guo, P. Donald Keathley, and J. T. Hastings, "Dual-mode surface-plasmon-resonance sensors using angular interrogation," Opt. Lett. 33, 512-514 (2008)

Sort:  Year  |  Journal  |  Reset  


  1. R. Slavik, J. Homola, and H. Vaisocherova, Meas. Sci. Technol. 17, 932 (2006). [CrossRef]
  2. R. Donipudi, S. Pochiraju, and J. T. Hastings, Proceedings of the 2006 Conference on Lasers and Electrooptics (2006).
  3. J. T. Hastings, J. Guo, P. D. Keathley, P. B. Kumaresh, Y. Wei, S. Law, and L. G. Bachas, Opt. Express 15, 17661 (2007). [CrossRef] [PubMed]
  4. J. J. Burke, G. I. Stegeman, and T. Tamir, Phys. Rev. B 33, 5186 (1986). [CrossRef]
  5. D. Sarid, Phys. Rev. Lett. 47, 1927 (1981). [CrossRef]
  6. J. Homola, Anal. Bioanal. Chem. 377, 528 (2003). [CrossRef] [PubMed]
  7. P. B. Johnson and R. W. Christy, Phys. Rev. B 6, 4370 (1972). [CrossRef]
  8. J. H. Lowry, J. S. Mendlowitz, and N. S. Subramanian, Opt. Eng. (Bellingham) 31, 1982 (1992). [CrossRef]
  9. CRC Handbook of Chemistry and Physics, 87th ed.,D.R.Lide, ed. (CRC Press, 2007).
  10. J. Homola, S. S. Yee, and G. Gauglitz, Sens. Actuators B 54, 3 (1999). [CrossRef]
  11. J. T. Hastings, IEEE Sens. J. 8, 170 (2008). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1 Fig. 2 Fig. 3
Fig. 4

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited