Crystallization in Li₂O-A1₂O₃-SiO₂ Glass induced by 355 nm Nd:YAG Laser Irradiation

Crystallization in Li₂O-A1₂O₃-SiO₂ Glass induced by 355 nm Nd:YAG Laser Irradiation

Nd:YAG laser of 355 nm wavelength, which amounts to 3.5 eV, produced by a harmonic generator was used to create Ag metallic particles as seeds for nucleation in photosensitive glass containing Ag⁺ and Ce³⁺ . The pulse widths and frequency of the laser were 8ns and 10 Hz, respectively. For crystalline growth, heat-treatment following laser irradiation was carried out at 570℃ for 1h. Then, the LiAlSi₃O₈ crystal phase appeared in the laser irradiated lithium aluminum silicate glass. We present the effect of laser-induced nucleation compared with spontaneous nucleation by heat treatment fur crystallization in the glass.