Browsing by Subject "Slab waveguide"
Now showing items 1-5 of 5
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Design of a slab waveguide using a graded index profile and a left hand material
(Elsevier BV, 2019-07)"In the present paper, we consider a pulse propagation in a slab waveguide structure having three layers. The guiding layer is assumed to have a linearly graded-index profile. Maxwell's equations are solved in the three layers ... -
Refractometric sensor based on slab waveguides of simultaneously negative permittivity and permeability materials
(Springer Science and Business Media LLC, 2020-12)"A four-layer slab waveguide is treated analytically for optical sensing purposes. The layers of the waveguide are substrate, thin flm and cladding. Another layer is introduced between the substrate and the flm which is ... -
Transverse magnetic mode slab waveguide optical sensor in the presence of conducting interfaces
(Elsevier BV, 2019-02)"In this paper, three –layer slab waveguide is considered for the p-polarization whose free charge layer with a surface conductivity is assumed to exist at the two interfaces. The structure is then enhanced for sensing ... -
Universal dispersion curves of a planar waveguide with an exponential graded-index guiding layer and a nonlinear cladding
(Elsevier BV, 2021-01)A planar waveguide consisting of three layers is considered. The guiding layer is assumed of exponentially graded index of refraction. The cover layer is a nonlinear material of Kerr-type. The refractive index distribution ... -
Waveguides including negative permeability and simultaneously negative permittivity and permeability materials for sensing applications
(Elsevier BV, 2021-02)In this paper, a four-layer slab waveguide sensor is proposed. The waveguide has the conventional structure of a substrate, a guiding film and a cladding. At the substrate-film interface, an additional layer is inserted ...