Fabrication of microcapillaries in fused silica using axicon focusing of femtosecond laser radiation and chemical etchingion/ms
2013
Fabrication of microcapillaries with a diameter of 50 — 80 μm and a length up to 2.5 mm in fused silica by axicon focusing of femtosecond laser radiation and subsequent chemical etching in a 8 % hydrofluoric acid solution is demonstrated. The etching rate is ~6 μm min-1. It is shown that the microcapillaries have optical waveguiding properties, which testifies to the optical quality of the walls of obtained structures.
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