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Proceedings Paper

Species selective vapour sensing of organic compounds using dual resonant long period fibre gratings with a calixarene coating
Author(s): S. M. Topliss; S. W. James; F. Davis; S. P. J. Higson; R. P. Tatam
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Paper Abstract

Species selective vapour sensing has been demonstrated using a coated Long Period Grating with a period and coating thickness that gives rise to a dual resonant response. A calixarene coating with nanostructured features was deposited using the Langmuir-Blodgett technique. A nanoscale cavity in the calixarene molecule adsorbs the analyte molecule causing an increase in the density and thereby the refractive index of the coating. Preliminary vapour sensing experiments were performed and indicate the sensor's selectivity, demonstrating strong responses to toluene and benzene, while exhibiting lower sensitivity to hexane and cyclohexane.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75031I (5 October 2009); doi: 10.1117/12.834707
Show Author Affiliations
S. M. Topliss, Cranfield Univ. (United Kingdom)
S. W. James, Cranfield Univ. (United Kingdom)
F. Davis, Cranfield Univ. (United Kingdom)
S. P. J. Higson, Cranfield Univ. (United Kingdom)
R. P. Tatam, Cranfield Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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