Sensing of gaseous analytes via Bloch surface waves

M. Gryga; D. Ciprian; L. Gembalova; P. Hlubina

doi:10.1117/12.2555713

1 April 2020 Sensing of gaseous analytes via Bloch surface waves

M. Gryga, D. Ciprian, L. Gembalova, P. Hlubina

Proceedings Volume 11354, Optical Sensing and Detection VI; 113541B (2020) https://doi.org/10.1117/12.2555713
Event: SPIE Photonics Europe, 2020, Online Only

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.

Conference Presentation

Citation Download Citation

M. Gryga, D. Ciprian, L. Gembalova, and P. Hlubina "Sensing of gaseous analytes via Bloch surface waves", Proc. SPIE 11354, Optical Sensing and Detection VI, 113541B (1 April 2020); https://doi.org/10.1117/12.2555713

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