A hydrogen sensor based on a metallic photonic crystal using gold and WO<sup>3</sup>is presented. Hydrogen exposure influences the optical properties of this device by gasochromic mechanisms with a theoretical limit in the sub-1000-ppm-range.
© 2008 Optical Society of America
(230.0230) Optical devices : Optical devices
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(230.5298) Optical devices : Photonic crystals
D. Nau, R. B. Orzekowsky, A. Seidel, T. P. Meyrath, and H. Giessen, "A Hydrogen Sensor Based on Metallic Photonic Crystal Slabs," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optical Society of America, 2008), paper QFG2.
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