Photonic crystal gas sensors

R. B. Wehrspohn; T. M. Geppert; S. L. Schweizer; A. v. Rhein; D. Pergande; T. Beyer; Armin Lambrecht

doi:10.1117/12.623381

23 May 2005 Photonic crystal gas sensors (Plenary Paper)

R. B. Wehrspohn, T. M. Geppert, S. L. Schweizer, A. v. Rhein, D. Pergande, T. Beyer, Armin Lambrecht

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623381
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

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.

Citation Download Citation

R. B. Wehrspohn, T. M. Geppert, S. L. Schweizer, A. v. Rhein, D. Pergande, T. Beyer, and Armin Lambrecht "Photonic crystal gas sensors (Plenary Paper)", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623381

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