Abstract

The first successful ablation of magnesium oxide through a home-made continuous-wave Cr:Nd:YAG ceramic solar laser is reported. A stationary heliostat-parabolic mirror solar energy collection and concentration system was used. A stable continuous-wave laser output power of 19.2 W was attained with laser beam brightness figure of merit 7.6 times higher than that of the previous scheme, enabling therefore the direct ablation of pure magnesium by our solar-pumped laser with only 1.6 m2 effective collection area. This could be an important step towards renewable magnesium production, offering multiple advantages, such as reducing agent avoidance, in relation to that of the previous Fresnel lens Cr:Nd:YAG continuous-wave solar laser system.

Original languageEnglish
Pages (from-to)430-435
Number of pages6
JournalSolar Energy Materials and Solar Cells
Volume155
DOIs
Publication statusPublished - 1 Oct 2016

Keywords

  • Continuous-wave
  • Cr:Nd:YAG
  • Laser ablation
  • Magnesium
  • Magnesium oxide
  • Solar laser

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