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Impact of target-derived and ambient oxygen on gas-phase oxidation in laser ablation plumes

Journal Article · · Optics Letters
DOI:https://doi.org/10.1364/ol.543518· OSTI ID:2561386
 [1];  [2];  [3];  [2]
  1. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); South Dakota School of Mines and Technology, Rapid City, SD (United States)
  2. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
  3. Univ. of Arizona, Tucson, AZ (United States)
Gas-phase oxidation in a laser-produced plasma is significantly influenced by the availability of oxygen in and around the plume. In this study, we investigate the role of target-derived and ambient oxygen on AlO formation in plasmas generated from aluminum (Al) and Al2O3 targets in air and argon, respectively. Our results highlight that gas-phase oxidation occurs early during the evolution of Al2O3 plasmas in argon, in contrast to Al plasmas in air, where the initial exclusion of oxygen from the plume delays the chemical reactions.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
2561386
Alternate ID(s):
OSTI ID: 2480987
Report Number(s):
PNNL-SA--204008
Journal Information:
Optics Letters, Journal Name: Optics Letters Journal Issue: 24 Vol. 49; ISSN 0146-9592
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English

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