Planar Evanescent Wave Ammonia Sensor - Influence of Refractive Index Profile on Sensor Properties
P. Karasiński, C. Tyszkiewicz and R. Rogoziński
Department of Optoelectronics, Silesian University of Technology, B. Krzywoustego 2, 44-100 Gliwice, Poland
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The paper presents the results of the investigations involving the influence of the change of launching conditions on the characteristics of the planar amplitude evanescent wave ammonia sensors. Investigated sensors are based on the channel gradient waveguides, which are produced with the application of the ion exchange in glasses. In our investigations we have tested two sensor structures of different refractive index profiles. The absorption sensitive films were produced using sol-gel technology.
DOI: 10.12693/APhysPolA.120.651
PACS numbers: 81.20.Fw, 42.70.Ce, 07.07.Df