Laser-induced breakdown spectroscopy with multi-kHz fibre laser for mobile metal analysis tasks — A comparison of different analysis methods and with a mobile spark-discharge optical emission spectroscopy apparatus

Laser-induced breakdown spectroscopy using laser pulses delivered by optical fibers for analyzing Mn and Ti elements in pig iron

“…28 Fiber lasers, with higher photon conversion efficiency and a compact size (which is an important requirement for reducing the overall dimensions of portable LIBS systems), are a variation of the standard solid-state lasers where the active medium is an optical ber rather than a rod. 28 Scharun et al 29 reported a multi-kHz ber laser for mobile metal analysis tasks. The achieved accuracy is similar or even better than the state-ofthe-art mobile SD-OES system for the described concentration ranges and measurement conditions.…”

Atomic spectrometry updates: Review of advances in atomic spectrometry and related techniques

“…For instance, Bhandari et al 121 have developed a megawatt peak power, 266 nm UV microlaser based on a passively Q-switched Nd:YAG/Cr 4+ :YAG microchip laser, which might be of great interest for the design of portable-LIBS systems. Scharun et al 122 have designed a LIBS setup with a multi-kHz bre laser which can be used for handheld quantitative analysis of metallic samples without mechanical sample preparation.…”

Atomic spectrometry update. Review of advances in the analysis of metals, chemicals and functional materials

“…Sample surface preparation by removal of surface material through ablation as part of the analytical cycle is an important advantage of LIBS. Scharun et al 14 exploited this in the development of a hand held probe which delivers 1.33 mJ single laser shots to the metal sample surface via a bre-optic at a repetition rate of 30 kHz. Advances in the production of high purity breoptics have permitted the delivery of this level of laser intensity sufficient for LIBS.…”