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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 34, Iss. 19 — Oct. 1, 2009
  • pp: 3023–3025

Critical sensitivity effect in an interferometer sensor

Ronen Levy, Shlomo Ruschin, and Damian Goldring  »View Author Affiliations


Optics Letters, Vol. 34, Issue 19, pp. 3023-3025 (2009)
http://dx.doi.org/10.1364/OL.34.003023


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Abstract

We report the observation of anomalous behavior in the spectral sensitivity response in a specially designed waveguided interferometer sensor. Approaching a definite critical point, the sensitivity increases nonlinearly. Furthermore, at the critical wavelength a new effect of splitting or bifurcation of a minimum dip is observed. The value of the splitting is suggested as an advantageous measure for sensing.

© 2009 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(130.6010) Integrated optics : Sensors

ToC Category:
Integrated Optics

History
Original Manuscript: May 14, 2009
Revised Manuscript: July 5, 2009
Manuscript Accepted: August 29, 2009
Published: September 30, 2009

Citation
Ronen Levy, Shlomo Ruschin, and Damian Goldring, "Critical sensitivity effect in an interferometer sensor," Opt. Lett. 34, 3023-3025 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-19-3023


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References

  1. P. V. Lambeck, Meas. Sci. Technol. 17, R93 (2006). [CrossRef]
  2. X. Fan, I. M. White, S. I. Shopova, H. Zhu, J. D. Suter, and Y. Sun, Anal. Chim. Acta 620, 8 (2008). [CrossRef] [PubMed]
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  4. R. Slavík and J. Homola, Sens. Actuators B 123, 10 (2007). [CrossRef]
  5. R. Levy and S. Ruschin, Opt. Express 16, 20516 (2008). [CrossRef] [PubMed]
  6. S. Stepanov and S. Ruschin, Appl. Phys. Lett. 83, 5151 (2003). [CrossRef]

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