Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5449894 | Photonics and Nanostructures - Fundamentals and Applications | 2017 | 14 Pages |
Abstract
Photonic crystal waveguide, to be used as a highly sensitive platform for refractive index based sensing applications, has been analyzed in this paper. The sensing performance is estimated by using dispersion diagram through using plane wave expansion simulations. The dispersion diagram is used to obtain transmittance and cut-off wavelengths for analyzing the sensor characteristics. It has been proposed that the photonic crystal waveguide with ring-type line defect provides a better perspective for sensing applications as compared to the conventional photonic crystal waveguide. An optimized ring-type photonic crystal waveguide structure with a defect filling factor of 50% shows a refractive index sensitivity of 450Â nm/RIU having almost double the output signal strength compared to hole-type line defect waveguide with the same filling factor.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Hemant Sankar Dutta, Amit Kumar Goyal, Suchandan Pal,