[Research Progress on Laser-Induced Breakdown Spectroscopy Based on Resonance Excitation]
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|September 30, 2015
Summary
Resonance excitation significantly enhances laser-induced breakdown spectroscopy (LIBS) sensitivity for trace element detection. This advancement expands LIBS applications in metallurgy, environmental monitoring, and isotope analysis.
Area of Science:
- Atomic spectroscopy
- Laser-based analytical techniques
Context:
- Laser-induced breakdown spectroscopy (LIBS) offers real-time, multi-element analysis without sample preparation.
- Poor analytical sensitivity currently limits LIBS technology development.
- Resonance excitation is a promising approach to overcome sensitivity limitations.
Purpose:
- To summarize the research development of LIBS based on resonance excitation.
- To introduce the principles and classifications of resonance-excited LIBS.
- To analyze factors influencing spectral enhancement in this technique.
Summary:
- Resonance-excited LIBS combines atomic fluorescence and laser-induced breakdown spectroscopy for selective elemental excitation.
- Key parameters like laser energy, wavelength, delay, and gate width are analyzed for spectral enhancement.
- The study details the generation of atomic and fluorescence spectra in laser-induced plasma.
Impact:
- Substantially improves analytical sensitivity, expanding LIBS applications for trace element detection.
- Discusses current applications and limitations in metallurgy, environmental monitoring, and isotope detection.
- Outlines future prospects for resonance-excited LIBS technology.
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