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Laser Amorphization of a Crystalline Phase in the Bulk of a Thermally Stable Lithium Aluminosilicate Glass-Ceramicстатья
- Авторы: Naumov A.S., Lotarev S.V., Lipatiev A.S., Shkhgildyan G.Yu, Fedotov S.S., Lopatina E.V., Karateev I.A., Sigaev V.N.
- Журнал: Inorganic Materials
- Том: 59
- Номер: 4
- Год издания: 2023
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 419
- Последняя страница: 424
- DOI: 10.1134/S0020168523040088
- Аннотация: This paper presents results of femtosecond laser micromachining of a transparent glass-ceramic in the Li2O–Al2O3–SiO2 system with a near-zero linear thermal expansion coefficient in the thermal and athermal regimes. Electron microscopy and electron diffraction data confirm complete amorphization of nanocrystals of β-eucryptite-like solid solutions under the effect of laser pulses. Using quantitative phase microscopy, we have evaluated refractive index changes in individual laser-written tracks. In the athermal regime at a pulse repetition rate of 10 kHz, complete glass-ceramic amorphization leads to a decrease in the refractive index of the material (Δn = −0.0035) in the laser treatment region, which opens up the possibility of using direct laser writing of channel waveguides in a thermally stable glass-ceramic matrix.
- Добавил в систему: Наумов Андрей Сергеевич