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Turkish Journal of Physics

Abstract

The sensitivity of the effective refractive index of slab waveguide sensors to variations in the refractive index of the cladding is compared to that of the ellipsometric parameters. The changes of the effective refractive index of a waveguide and the ellipsometric parameter \Delta , due to the index change of the cladding, were derived and plotted as a function of the guiding layer thickness and with the index of the cladding. It is found that these changes almost have the same overall feature but the ellipsometric parameters showed considerable higher sensitivity than the effective index of the conventional waveguide optical sensors.

DOI

10.3906/fiz-1001-2

Keywords

Optical sensors, slab waveguides, sensitivity, ellipsometry

First Page

31

Last Page

36

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