Laser-Based Trace Gas Detection inside Hollow-Core Fibers: A Review

被引：18
作者：
Nikodem, Michal [1 ]
机构：
[1] Wroclaw Univ Sci & Technol, Dept Opt & Photon, Wybrzeze Wyspianskiego 27, PL-50370 Wroclaw, Poland
来源：
MATERIALS | 2020年 / 13卷 / 18期
关键词：
hollow-core fiber (HCF); negative curvature hollow-core fiber (NC HCF); photonic band-gap hollow-core fiber (PBG HCF); anti-resonant hollow-core fiber; Kagome hollow-core fiber; laser spectroscopy; gas sensing; MICROSTRUCTURED OPTICAL-FIBER; PHOTONIC BANDGAP FIBER; NEGATIVE-CURVATURE; ABSORPTION-SPECTROSCOPY; WAVE-GUIDE; MIDINFRARED TRANSMISSION; SILICA HOLLOW; MU-M; COMPACT; METHANE;
D O I：
10.3390/ma13183983
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Thanks to the guidance of an optical wave in air, hollow-core fibers may serve as sampling cells in an optical spectroscopic system. This paper reviews applications of hollow-core optical fibers to laser-based gas sensing. Three types of hollow-core fibers are discussed: Hollow capillary waveguides, photonic band-gap fibers, and negative curvature fibers. Their advantages and drawbacks when used for laser-based trace gas detection are analyzed. Various examples of experimental sensing systems demonstrated in the literature over the past 20 years are discussed.
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页数：19
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