Spectral stability improvement through wide fields of view collection optics in laser-induced breakdown spectroscopy applications

Wang, Guangda; Zeng, Ying; Guo, Lianbo; Li, Shenglin; Hu, Zhenlin

doi:10.1039/d3ja00270e

J. Anal. At. Spectrom.

2023

DOI: 10.1039/d3ja00270e

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Spectral stability improvement through wide fields of view collection optics in laser-induced breakdown spectroscopy applications

Guangda Wang,

Ying Zeng,

Lianbo Guo

et al.

Abstract: Spectral stability improvement through various wide fields of view collecting optics, averaging temperature and ionization conditions, reducing the impact of plasma morphology fluctuations on acquisition.

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Cited by 3 publications

References 39 publications

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A spectral bias-error stepwise correction method of plasma image-spectrum fusion based on deep learning for improving the performance of LIBS

Zhang,

Ma,

Nie

et al. 2025

Talanta

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A spectral bias-error stepwise correction method of plasma image-spectrum fusion based on deep learning for improving the performance of LIBS

Zhang,

Ma,

Nie

et al. 2025

Talanta

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Ultra-sensitive detection of heavy metal aerosols: A hybrid LIBS-LIF and gated PMT enhancement approach

Ouyang,

Niu,

Liu

et al. 2025

Talanta

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Near 2π solid angle fluorescence collection for laser-induced breakdown spectroscopy

Bai,

Zhang,

Dong

et al. 2024

Opt. Lett.

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Detecting heavy metal and radioactive elements distributed in the environment and human body is crucial for life and environmental safety. A lens with a high numerical aperture (NA) is used in laser-induced breakdown spectroscopy to collect the plasma fluorescence as much as possible and improve the limit of detection. However, even a lens with NA up to 0.6, only the fluorescence in a solid angle of 0.4π can be collected. In this work, a novel, to our knowledge, fluorescence collecting scheme composed of a parabolic mirror and a lens is proposed which can collect the plasma fluorescence in a solid angle of ∼1.4π for an opaque material and ∼1.9π for a transparent material. Simulation results show that for opaque samples, this method can improve the fluorescence collection ability by 3.8 times compared to a single lens (NA = 0.5) collection scheme, and for transparent samples 4.5 times may be achieved. In experiments, a 2.8-fold enhancement in the fluorescence collection ability is demonstrated, and the signal-to-noise ratio is increased by 2.5 times for opaque samples.

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Spectral stability improvement through wide fields of view collection optics in laser-induced breakdown spectroscopy applications

Abstract: Spectral stability improvement through various wide fields of view collecting optics, averaging temperature and ionization conditions, reducing the impact of plasma morphology fluctuations on acquisition.

Cited by 3 publications

References 39 publications

A spectral bias-error stepwise correction method of plasma image-spectrum fusion based on deep learning for improving the performance of LIBS

A spectral bias-error stepwise correction method of plasma image-spectrum fusion based on deep learning for improving the performance of LIBS

Ultra-sensitive detection of heavy metal aerosols: A hybrid LIBS-LIF and gated PMT enhancement approach

Near 2π solid angle fluorescence collection for laser-induced breakdown spectroscopy

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