在可见光范围内工作的长周期光栅光纤,涂有卟啉基薄膜作为氨水传感器

Sandor Erdody, S. Korposh, Seung-woo Lee, S. Morgan
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引用次数: 0

摘要

报道了一种用敏感染料功能化的可见光长周期光栅(LPG)。基于两种不同的传感机制传输,采用强度比;基于折射率变化,提出了利用PMTP衰减带移位的方法。采用幅度掩模激光刻字法,在SM600型载氢光纤上制备了相位匹配拐点(PMTP) ~700 nm的可见范围LPG。采用逐层沉积的方法,在LPG纤维和玻璃衬底上沉积了重氮树脂(DAR)和四烷基(4-巯基)卟啉(TSPP)染料基氨敏感薄膜。利用DAR-TSPP涂层的玻璃基板计算复折射率(RI)差。将可见光液化石油气的响应与具有相同涂层的红外液化石油气进行了比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Long period grating fibre operating in visible range coated with porphyrin based thin film as an ammonia aqueous sensor
A long period grating (LPG) operating in the visible wavelength range functionalised with sensitive dyes is reported. Two different sensing mechanisms transmission based, using intensity ratio; and refractive index change based, using the PMTP attenuation bands shift are presented. The visible range LPG’s with phase matching turning point (PMTP) ~700 nm was fabricated using amplitude mask laser inscribing approach on a hydrogen loaded SM600 fibre. Ammonia sensitive thin film based on diazonium resin (DAR) and tetrakis-(4-sulfophenyl)porphine (TSPP) dye was deposited via layer-by-layer deposition on LPG fibre and glass substrate. Glass substrate coated by DAR-TSPP was used to calculate the complex refractive index (RI) difference. The response of the visible LPG was compared to an infrared LPG with a same coating.
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