Sensitivity enhancement of metal clad planar waveguide sensor using metamaterial layer as a guiding layer

Pal, Sarika; Prajapati, Yogendra Kumar; Saini, J. P.; Singh, Vivek

doi:10.1016/j.ijleo.2015.04.047

Cited by 4 publications

(1 citation statement)

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“…Refractometry detection limit of peak type metal clad waveguide sensor could also be enhanced by using metamaterial as the guiding layer [18]. Metamaterial as the guiding layer is able to enhance the sensitivity in the metal clad waveguide sensor as well as in planar waveguide sensor for TE mode polarization of the input light [19,20]. Enhanced resolution limit is a result of using metamaterial in surface plasmon resonance (SPR) sensor having bi-metallic layer [21].…”

Section: Introductionmentioning

confidence: 99%

Analytical study of planar waveguide sensor with a metamaterial guiding layer

2017

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Sensitivities of three-layer and four-layer planar waveguide sensors having metamaterial as guiding layer are analyzed for p-polarization of incident light and compared with existing results. Proposed sensors show improved cover layer sensitivity for each case of the cover layer refractive index. Also, proposed sensors demonstrate improved adlayer sensitivity for different values of adlayer thickness and adlayer refractive indices. It is observed that metamaterial has increased the evanescent field due to the unconventional nature of it, by which values of cover layer sensitivity as well as adlayer sensitivity are enhanced.

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Section: Introductionmentioning

confidence: 99%