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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 8 — Aug. 26, 2011

Real-time and low-cost sensing technique based on photonic bandgap structures

J. G. Castelló, V. Toccafondo, P. Pérez-Millán, N. S. Losilla, J. L. Cruz, M. V. Andrés, and J. García-Rupérez  »View Author Affiliations


Optics Letters, Vol. 36, Issue 14, pp. 2707-2709 (2011)
http://dx.doi.org/10.1364/OL.36.002707


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Abstract

A technique for the development of low-cost and high-sensitivity photonic biosensing devices is proposed and experimentally demonstrated. In this technique, a photonic bandgap structure is used as transducer, but its readout is performed by simply using a broadband source, an optical filter, and a power meter, without the need of obtaining the transmission spectrum of the structure; thus, a really low-cost system and real-time results are achieved. Experimental results show that it is possible to detect very low refractive index variations, achieving a detection limit below 2 × 10 6 refractive index units using this low-cost measuring technique.

© 2011 Optical Society of America

OCIS Codes
(130.6010) Integrated optics : Sensors
(130.5296) Integrated optics : Photonic crystal waveguides

ToC Category:
Integrated Optics

History
Original Manuscript: May 26, 2011
Revised Manuscript: June 13, 2011
Manuscript Accepted: June 13, 2011
Published: July 14, 2011

Virtual Issues
Vol. 6, Iss. 8 Virtual Journal for Biomedical Optics

Citation
J. G. Castelló, V. Toccafondo, P. Pérez-Millán, N. S. Losilla, J. L. Cruz, M. V. Andrés, and J. García-Rupérez, "Real-time and low-cost sensing technique based on photonic bandgap structures," Opt. Lett. 36, 2707-2709 (2011)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-36-14-2707


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