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Proceedings Paper

Photonic crystal gas sensors
Author(s): R. B. Wehrspohn; T. M. Geppert; S. L. Schweizer; A. v. Rhein; D. Pergande; T. Beyer; Armin Lambrecht
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Paper 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.

Paper Details

Date Published: 23 May 2005
PDF: 6 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623381
Show Author Affiliations
R. B. Wehrspohn, Univ. of Paderborn (Germany)
T. M. Geppert, Univ. of Paderborn (Germany)
Max Planck Institute of Microstructure Physics (Germany)
S. L. Schweizer, Univ. of Paderborn (Germany)
A. v. Rhein, Univ. of Paderborn (Germany)
D. Pergande, Univ. of Paderborn (Germany)
T. Beyer, Fraunhofer Institute for Physical Measurement Techniques (Germany)
Armin Lambrecht, Fraunhofer Institute for Physical Measurement Techniques (Germany)


Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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