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14 October 2004 Photonic crystal gas sensors
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Abstract
The bandstructure of photonic crystals offers intriguing possibilities for the manipulation of electromagnetic waves. During the last years, research has mainly focussed on the application of these photonic crystal properties in the telecom area. We suggest utilization of photonic crystals for sensor applications such as qualitative and quantitative gas and liquid analysis. Taking advantage of the low group velocity and certain mode distributions for some k-points in the bandstructure of a photonic crystal should enable the realization of very compact sensor devices. We show different device configurations of a photonic crystal based on macroporous silicon that fulfill the demands to serve as a compact gas sensor.
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Torsten M. Geppert, Stefan L. Schweizer, J. Schilling, Cecile Jamois, A. V. Rhein, D. Pergande, Regine Glatthaar, P. Hahn, A. Feisst, Armin Lambrecht, and Ralf B. Wehrspohn "Photonic crystal gas sensors", Proc. SPIE 5511, Tuning the Optical Response of Photonic Bandgap Structures, (14 October 2004); https://doi.org/10.1117/12.561724
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