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Updated: Jul 20, 2026

Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
Published on: July 2, 2012
[The time-evolution study on the laser-induced oxygen plasmas spectra]
1College of Electrics and Information Engineering, South-Central University for Nationalities, Wuhan, China.
Spectroscopic analysis of laser-induced oxygen plasma reveals distinct continuous and line spectra. Understanding their temporal decay aids in prolonging plasma lifetimes for technical applications.
Area of Science:
- Spectroscopy
- Plasma Physics
- Laser-Induced Breakdown Spectroscopy (LIBS)
Context:
- Investigates oxygen plasma generated by a 1.06 micrometer pulsed laser.
- Utilizes high-purity oxygen (99.9999%) samples.
- Covers a spectral range from 300 to 900 nm.
Purpose:
- To perform a spectroscopic study of laser-induced oxygen plasma.
- To analyze the temporal behavior of plasma spectra.
- To elucidate the underlying physical processes and mechanisms.
Summary:
- Observed spectra comprise both continuous and line components.
- Each spectral component exhibits unique temporal attenuation patterns.
- Microscopic mechanisms governing plasma decay were analyzed.
Impact:
- Enhances understanding of laser-induced air plasma decay mechanisms.
- Provides experimental evidence for extending plasma decay times in applications.
- Contributes to the fundamental knowledge of plasma physics.
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