- Turkish Journal of Physics
- Vol: 37 Issue: 2
- Planar waveguide with left-handed material guiding film for refractometry applications
Planar waveguide with left-handed material guiding film for refractometry applications
Authors : Taher M. El-agez, Sofyan A. Taya, Mohamed M. Shabat, Hani M. Kullab
Pages : 250-258
Doi:10.3906/kim-1212-33
View : 9 | Download : 4
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :A symmetric 3-layer slab waveguide with a left-handed material as a guiding layer is examined analytically for cover refractive index detection. The TM mode dispersion relation of the proposed waveguide is investigated. The sensitivity of the proposed sensor to changes in the cover refractive index and the power flowing within each layer are presented. Some unusual features are found; for example, the sensitivity of the proposed sensor is negative. Moreover, the sensitivity improvement compared with the conventional 3-layer waveguide sensor is approximately a factor of 6.Keywords : Slab waveguides, optical sensors, left-handed material, sensitivity, power