Abstract
Laser amorphization of glass-ceramics (LAGC) is investigated by optical pyrometry and video recording. Due to this new knowledge, the mechanism of local LAGC is made clear as a phenomenon leaded by thermal kinetic. The required power density and temporal range of CO<sub>2</sub>-laser irrdiation for amorphization of a typical glass-ceramic (GC) α-TiO<sub>2</sub> • 2MgO • 2Al<sub>2</sub>O<sub>3</sub> • 5SiO<sub>2</sub> is defined. It is demonstrated that a wide range of miniature optical components such as lenses, lenslet arrays, waveguides, geodesic (plane) lenses, etc... can be fabricated by LAGC.
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