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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 18 — Sep. 15, 2010
  • pp: 3150–3152

Hydrogen sensor based on metallic photonic crystal slabs

D. Nau, A. Seidel, R. B. Orzekowsky, S.-H. Lee, S. Deb, and H. Giessen  »View Author Affiliations


Optics Letters, Vol. 35, Issue 18, pp. 3150-3152 (2010)
http://dx.doi.org/10.1364/OL.35.003150


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Abstract

We present a hydrogen sensor based on metallic photonic crystal slabs. Tungsten trioxide ( WO 3 ) is used as a waveguide layer below an array of gold nanowires. Hydrogen exposure influences the optical properties of this photonic crystal arrangement by gasochromic mechanisms, where the photonic crystal geometry leads to sharp spectral resonances. Measurements reveal a change of the transmission depending on the hydrogen concentration. Theoretical limits for the detection range and sensitivity of this approach are discussed.

© 2010 Optical Society of America

OCIS Codes
(300.6250) Spectroscopy : Spectroscopy, condensed matter
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(160.5293) Materials : Photonic bandgap materials

ToC Category:
Spectroscopy

History
Original Manuscript: July 27, 2010
Revised Manuscript: July 27, 2010
Manuscript Accepted: August 20, 2010
Published: September 15, 2010

Virtual Issues
Vol. 5, Iss. 14 Virtual Journal for Biomedical Optics

Citation
D. Nau, A. Seidel, R. B. Orzekowsky, S.-H. Lee, S. Deb, and H. Giessen, "Hydrogen sensor based on metallic photonic crystal slabs," Opt. Lett. 35, 3150-3152 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-18-3150

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