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Proceedings Paper

Sensing of gaseous analytes via Bloch surface waves
Author(s): M. Gryga; D. Ciprian; L. Gembalova; P. Hlubina
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Paper Abstract

A theoretical study of a new sensing concept based on Bloch surface waves (BSWs), which utilizes a onedimensional photonic crystal (1DPhC) represented by a multilayer structure, is presented. 1DPhCs have a number of useful features, including physical and chemical robustness. We model the response of a BK7 prism/multilayer/analyte system in the Kretschmann configuration for s- and p-polarized waves. We show that the 1DPhC supports surface electromagnetic waves at frequencies within the forbidden transmission band of the multilayer structure. A dip in the reflectance spectrum for s-polarized wave represents the excitation of the BSW and this is demonstrated for air and gaseous analytes.

Paper Details

Date Published: 1 April 2020
PDF: 7 pages
Proc. SPIE 11354, Optical Sensing and Detection VI, 113541B (1 April 2020); doi: 10.1117/12.2555713
Show Author Affiliations
M. Gryga, VŠB-Technical Univ. of Ostrava (Czech Republic)
D. Ciprian, VŠB-Technical Univ. of Ostrava (Czech Republic)
L. Gembalova, VŠB-Technical Univ. of Ostrava (Czech Republic)
P. Hlubina, VŠB-Technical Univ. of Ostrava (Czech Republic)

Published in SPIE Proceedings Vol. 11354:
Optical Sensing and Detection VI
Francis Berghmans; Anna G. Mignani, Editor(s)

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