Design of a Silicon Overlay Glass Waveguide Sensor

作     者：Kristian E. Medri Robert C. Gauthier 

作者机构：不详 

出 版 物：《Optics and Photonics Journal》 (光学与光子学期刊（英文）)

年 卷 期：2011年第1卷第4期

页      面：151-154页

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

主　　题：Refractive Index Sensor Slab Waveguide Patterned High Dielectric Overlay FDTD Integrated Optics 

摘      要：A glass based slab waveguide, coated with a thin patterned high dielectric overlay, is configured into a refractive index sensor. The asymmetric nature of the waveguide configuration is exploited by keeping the mode in the slab waveguide while enhancing the field level in the overlay-superstrate. The sensor s response is examined using the FDTD simulation technique. A sensitivity of up to one part in 105 in the index of refraction discrimination is determined. The nature of the sensor ensures optical fibre compatibility, requires sub-μL sample volumes and provides a high resolution.