A compact field-portable double-pulse laser system to enhance laser induced breakdown spectroscopy

Shuo Li, Lei Liu, Aidong Yan, Sheng Huang, Xi Huang, Rongzhang Chen, Yongfeng Lu, Kevin Chen

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This paper reports the development of a compact double-pulse laser system to enhance laser induced breakdown spectroscopy (LIBS) for field applications. Pumped by high-power vertical-surface emitting lasers, the laser system that produces 16 ns pulse at 12 mJ/pulse with total weight less than 10 kg is developed. The inter-pulse delay can be adjusted from 0μs with 0.5μs increment. Several LIBS experiments were carried out on NIST standard aluminum alloy samples. Comparing with the single-pulse LIBS, up to 9 times enhancement in atomic emission line was achieved with continuum background emission reduced by 70%. This has led to up to 10 times improvement in the limit of detection. Signal stability was also improved by 128% indicating that a more robust and accurate LIBS measurement can be achieved using a compact double-pulse laser system. This paper presents a viable and field deployable laser tool to dramatically improve the sensitivity and applicability of LIBS for a wide array of applications.

Original languageEnglish (US)
Article number023109
JournalReview of Scientific Instruments
Volume88
Issue number2
DOIs
StatePublished - Feb 1 2017

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Laser induced breakdown spectroscopy
laser-induced breakdown spectroscopy
Laser pulses
pulses
lasers
Lasers
Surface emitting lasers
Aluminum alloys
surface emitting lasers
aluminum alloys
continuums
augmentation
sensitivity
Experiments

ASJC Scopus subject areas

  • Instrumentation

Cite this

A compact field-portable double-pulse laser system to enhance laser induced breakdown spectroscopy. / Li, Shuo; Liu, Lei; Yan, Aidong; Huang, Sheng; Huang, Xi; Chen, Rongzhang; Lu, Yongfeng; Chen, Kevin.

In: Review of Scientific Instruments, Vol. 88, No. 2, 023109, 01.02.2017.

Research output: Contribution to journalArticle

Li, Shuo ; Liu, Lei ; Yan, Aidong ; Huang, Sheng ; Huang, Xi ; Chen, Rongzhang ; Lu, Yongfeng ; Chen, Kevin. / A compact field-portable double-pulse laser system to enhance laser induced breakdown spectroscopy. In: Review of Scientific Instruments. 2017 ; Vol. 88, No. 2.
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