Abstract

Tapered silver halide fibers were used for the first time for high-sensitivity fiber evanescent wave spectroscopic (FEWS) measurements of chlorinated hydrocarbons (CHCs) in water at trace level. The sensor arrangement consisted of a tunable diode laser (TDL) source, a polymer-coated and tapered silver halide fiber, and a direct fiber/mercury cadmium telluride (MCT) detector coupling. A minimum detection limit of 50 μg L^-1 was achieved by using a polyisobutylene-coated fiber with a 1:4 tapering ratio. The sensor response is in the minute range and shows reversible analyte enrichment.

Optimized Ge-As-Se-Te chalcogenide glass fiber sensor with polydopamine-coated tapered zone for the highly sensitive detection of p-xylene in waters

Jingxiang Su, Shixun Dai, and Ning Gan
Opt. Express 28(1) 184-193 (2020)

Sensitive in situ detection of chlorinated hydrocarbons in gas mixtures

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Fiber-optic evanescent wave sensor for gas detection

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Sensitive acoustic vibration sensor using single-mode fiber tapers

Yi Li, Xiaozhen Wang, and Xiaoyi Bao
Appl. Opt. 50(13) 1873-1878 (2011)

Examination of tapered plastic multimode fiber-based sensor performance with silver coating for different concentrations of calcium hypochlorite by soft computing methodologies—a comparative study

Rozalina Zakaria, Ong Yong Sheng, Kam Wern, Shahaboddin Shamshirband, Ainuddin Wahid Abdul Wahab, Dalibor Petković, and Hadi Saboohi
J. Opt. Soc. Am. A 31(5) 1023-1030 (2014)