不同弯曲直径的SU-8聚合物波导的最大灵敏度比较

2012 1st International Symposium on Physics and Technology of Sensors (ISPTS-1) Pub Date : 2012-03-07 DOI:10.1109/ISPTS.2012.6260931

R. Tripathi, A. Prabhakar, S. Mukherji

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引用次数: 2

摘要

本文制备了不同弯曲直径的C和S弯曲形状的SU-8聚合物光波导，实验研究了弯曲对波导灵敏度的影响。在波长530 nm处，观察到吸光度随外介质折射率变化在1.33 ~ 1.38之间的实时变化。在C型和S型中，灵敏度随弯曲直径的减小而增大。在达到最佳值后，弯曲直径的任何进一步减小都会降低波导的灵敏度。C形的最大灵敏度为5.35 ΔA / RIU, S形的最大灵敏度为13.04 ΔA / RIU，是C形的两倍多。

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Comparison of micro fabricated C and S bend shape SU-8 polymer waveguide of different bending diameters for maximum sensitivity

In this study C and S bend shape SU-8 polymer optical waveguides of different bending diameters have been microfabricated to experimentally investigate the effect of bending on the sensitivity of the waveguides. The real-time change in absorbance with change in refractive index varying from 1.33 to 1.38 of external medium is observed at wavelength 530 nm. It is observed that in both C and S shape, the sensitivity increases with the decreasing bending diameter. After an optimum value any further decrease in bending diameter reduces the sensitivity of waveguides. Maximum sensitivity observed with C shape is 5.35 ΔA / RIU and S shape is 13.04 ΔA / RIU, which is more than twice as compared to C shape.

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2012 1st International Symposium on Physics and Technology of Sensors (ISPTS-1)

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