Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7930693 | Optics Communications | 2015 | 4 Pages |
Abstract
We propose a refractive index sensor based on the mode interference in a five-layer waveguide. The propagation properties are analyzed by the coupled mode theory, and the function of the waveguide as a refractive index sensor is also explored based on simulation results. Taking into consideration a trade-off between the sensitivity and the size of the proposed sensor, we can get a very compact device of 10.8 μmÃ1 μm, and the sensing resolution of the proposed refractive index can reach 2.25Ã10â5 RIU for index change at around 1.455.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Tingting Tang, Wenying Ma, Wenli Liu, Xiujun He,