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Analysis of a metal clad waveguide sensor having metamaterial as a guiding layer

Upadhyay A., Prajapati Y. K., Tripathi R., Singh V., Saini J. P.

Opto-Electronics Review

2016

Vol. 24, No. 2

47--57

In this study a metal clad waveguide sensor with a metamaterial guiding layer is analyzed. Sensitivity of the proposed sensor is derived using dispersion and Fresenal’s equations for waveguiding mode and reflection mode. While efficiently analyzing and comparing the results with the existing one, some interesting findings are achieved. It is observed that the proposed sensor shows larger cover layer sensitivity and larger adlayer sensitivity compared to the dielectric guiding layer sensor due to adsorbtive properties of metamaterial. Henceforth, it concludes that the proposed sensor shows sensitivity improvement over a dielectric guiding layer sensor.

Influence of organic dopant-urease on sol-gel matrix optical properties in visible range.

Ulatowska A., Podbielska H.

Optica Applicata

2000

Vol. 30, nr 1

193-197

The preparation of sol-gel derived materials in the form of bulk and thin films as well as bulks with entrapped urease as an organic dopant is described. The absorbance spectra of urease solutions and sol-gel matrices were recorded in the transmission mode. The absorbance of sol-gel matrices with embedded enzyme was measured in the reflection mode.