Abstract
The laser amorphisation of glass ceramics (LAGC) is studied by optical pyrometry and video recording. The mechanism of local LAGC as a structural phase transition determined by the temperature kinetics in the laser-irradiated region is proposed. The ranges of the power density and exposures to the 10.6-μm IR radiation required for amorphisation of the typical glass ceramics, a SiO2- Al2O3-CaO-MgO-TiO2 sital are determined. It is shown that LAGC can be used to fabricate a number of miniature optical elements such as lenses, lens rasters, light guides and waveguides, etc.
Original language | English (US) |
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Pages (from-to) | 92-98 |
Number of pages | 7 |
Journal | Quantum Electronics |
Volume | 37 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2007 |
Externally published | Yes |
Keywords
- Glass ceramics
- Laser amorphisation
- Microoptical elements
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Statistical and Nonlinear Physics
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering