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Gas sensing using slow light in photonic crystal waveguides

Awad, Hazem Abdul'Aal and Hasan, L and Mnaymneh, K and Hall, Trevor and Andonovic, Ivan (2011) Gas sensing using slow light in photonic crystal waveguides. In: 2011 7th workshop on fibre and optical passive components (WFOPC) proceedings. IEEE, pp. 1-3. ISBN 9781457708619

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Abstract

We introduce a novel gas sensor based on photonic crystal (PhC) waveguides where the gas sensing is based on the interaction between the slow light mode and the gas. Specifically, when the refractive index of the photonic crystal waveguide changes (due to a change in gas), the slow light regime of the photonic crystal waveguide is affected and shifts in wavelength. We have performed experiments with Helium and Argon gases to confirm the operation of the sensor, with Air being used as reference gas. Results show that the slow light regime typically shifts by 0.6 nm for Helium and 0.05nm for Argon.

Item type: Book Section
ID code: 41040
Keywords: gas sensing , slow light , photonic crystal waveguides, argon, sensors , photonics, photonic crystals , helium, crystals, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 07 Sep 2012 14:37
    Last modified: 06 Sep 2014 08:45
    URI: http://strathprints.strath.ac.uk/id/eprint/41040

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