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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 21 — Nov. 1, 2007
  • pp: 3080–3082

Slot-waveguide biochemical sensor

Carlos A. Barrios, Kristinn B. Gylfason, Benito Sánchez, Amadeu Griol, H. Sohlström, M. Holgado, and R. Casquel  »View Author Affiliations


Optics Letters, Vol. 32, Issue 21, pp. 3080-3082 (2007)
http://dx.doi.org/10.1364/OL.32.003080


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Abstract

We report an experimental demonstration of an integrated biochemical sensor based on a slot-waveguide microring resonator. The microresonator is fabricated on a Si3N4-SiO2 platform and operates at a wavelength of 1.3 μm. The transmission spectrum of the sensor is measured with different ambient refractive indices ranging from n=1.33 to 1.42. A linear shift of the resonant wavelength with increasing ambient refractive index of 212 nm/refractive index units (RIU) is observed. The sensor detects a minimal refractive index variation of 2×10−4 RIU.

© 2007 Optical Society of America

OCIS Codes
(130.6010) Integrated optics : Sensors
(230.5750) Optical devices : Resonators

ToC Category:
Integrated Optics

History
Original Manuscript: August 6, 2007
Revised Manuscript: September 13, 2007
Manuscript Accepted: September 16, 2007
Published: October 17, 2007

Virtual Issues
Vol. 2, Iss. 12 Virtual Journal for Biomedical Optics

Citation
Carlos A. Barrios, Kristinn B. Gylfason, Benito Sánchez, Amadeu Griol, H. Sohlström, M. Holgado, and R. Casquel, "Slot-waveguide biochemical sensor," Opt. Lett. 32, 3080-3082 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-21-3080

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