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Consolidation of flame hydrolysis deposited silica with a 9.3 µm wavelength CO2 laser

Consolidation of flame hydrolysis deposited silica with a 9.3 µm wavelength CO2 laser

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Consolidation of flame hydrolysis deposition silica soot with a 9.3 µm CO2 laser has been demonstrated. A range of laser parameters were investigated and the surface roughness of the resulting silica layers were characterised with a stylus profiler and white light interferometer. The surface roughness parameters were Ra = 68.9 nm, Rq = 83.8 nm perpendicular to the trajectory of the translated laser beam for a speed of 300 mm s−1 and an average laser power of 42.5 W, and Ra = 29.5 nm, Rq = 36.18 nm along the trajectory of the translated laser beam for a speed of 250 mm s−1 and an average laser power of 35.8 W.

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      • 7. Shen, N., Matthews, J., Fair, J.E., et al: ‘Study of CO2 laser smoothing of surface roughness in fused silica’. No. LLNL-PROC-420985, Lawrence Livermore National Laboratory (LLNL), Livermore, CA, 2009.
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http://iet.metastore.ingenta.com/content/journals/10.1049/el.2018.0039
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