期刊
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
卷 128, 期 10, 页码 -出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00339-022-06007-9
关键词
Fiber-based LIBS; Online elemental characterization; Remote LIBS; Hollow-core fiber
资金
- UAY [21-105/2015-TS.II/TC]
This study proposed and demonstrated the feasibility of a fiber-based LIBS technique for analyzing pulverized coal. By replacing the air medium with a hollow-core fiber, high-power laser pulses were effectively delivered to the target for ablation with a transmission efficiency of 50-60%. The addition of the hollow-core fiber upgraded the conventional LIBS technique into a remote characterization unit, as proven by the captured LIBS spectra.
The present study proposed and demonstrated the feasibility of the fiber-based LIBS technique for the analysis of pulverized coal. A hollow-core fiber was employed to replace the air medium in the conventional LIBS setup for the delivery of high-power laser pulses to the target. It was observed that the hollow-core fiber could effectively deliver the laser energy for target ablation with a transmission efficiency of 50-60%. The LIBS spectra captured using the fiber LIBS technique prove that the addition of hollow-core fiber can upgrade the conventional LIBS technique into a remote characterization unit. Convincing results were obtained in terms of quantitative carbon measurement using the proposed approach.
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