Abstract

The influence of thickness of silver-magnesium fluoride bi-layers on the sensitivity of SPR based fiber optic sensor has been experimentally examined. The sensitivity is enhanced with increasing magnesium fluoride layer thickness up to 30 nm and decreases at values exceeding 30 nm. The optimum thickness of magnesium fluoride layer was determined to be 30 nm. A sensor fabricated from bi-layers of 40 nm thick silver and 30 nm thick magnesium fluoride demonstrated favorable sensing behavior.

中文翻译：

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基于银-氟化镁双层的光纤表面等离子体共振传感器的制备和表征

摘要

已经通过实验研究了银-氟化镁双层的厚度对基于 SPR 的光纤传感器灵敏度的影响。灵敏度随着氟化镁层厚度增加至 30 nm 而增强，并在值超过 30 nm 时降低。氟化镁层的最佳厚度确定为30 nm。由 40 nm 厚的银和 30 nm 厚的氟化镁双层制成的传感器表现出良好的传感行为。