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Related Experiment Video

Updated: Apr 12, 2026

Dependence of Laser-induced Breakdown Spectroscopy Results on Pulse Energies and Timing Parameters Using Soil Simulants
08:53

Dependence of Laser-induced Breakdown Spectroscopy Results on Pulse Energies and Timing Parameters Using Soil Simulants

Published on: September 23, 2013

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[The auto-focusing remote laser-induced breakdown spectroscopy system].

Zhen-yu Han, Cong-yuan Pan, Ning An

    Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
    |May 15, 2015
    PubMed
    Summary
    This summary is machine-generated.

    A new auto-focus laser-induced breakdown spectroscopy (LIBS) system uses a Schwarzschild telescope for remote measurements. This system effectively focuses lasers on samples at varying distances, enabling precise spectral analysis for elemental identification.

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    Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown
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    Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown

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    Area of Science:

    • Optics and Spectroscopy
    • Materials Analysis
    • Laser Technology

    Context:

    • Remote elemental analysis requires precise laser focusing on targets at variable distances.
    • Traditional Laser-Induced Breakdown Spectroscopy (LIBS) systems often lack robust auto-focusing capabilities for remote applications.
    • Developing adaptable optical systems is crucial for expanding LIBS applications in challenging environments.

    Purpose:

    • To present an auto-focus Schwarzschild telescope system for remote Laser-Induced Breakdown Spectroscopy (LIBS).
    • To demonstrate the system's capability to adjust focal length and focusing spot diameter for variable sample distances.
    • To validate the auto-focusing mechanism using copper spectral lines for remote ablation and spectral measurement.

    Summary:

    • A novel auto-focus LIBS system incorporates a Schwarzschild telescope with a motorized linear translation stage to adjust focal length (1.5-3.6 m).
    • The system utilizes a shared optical path for laser focusing and spectral collection, featuring total reflection for ultraviolet detection.
    • Experiments with a copper sample confirmed the system's ability to auto-focus and perform remote LIBS measurements effectively.

    Impact:

    • Enables remote elemental analysis of materials using LIBS across a range of distances.
    • Simplifies LIBS system setup and operation due to integrated focusing and collection optics.
    • Offers a cost-effective and manufacturable optical solution for advanced LIBS instrumentation.