玻璃激光内雕技术的最新进展

Recent Development on Laser Technique of Internal Engraving in Glass

玻璃激光内雕技术的发展经历了传统的白色激光内雕和现代的着色激光内雕两个阶段。传统的白色激光内雕是通过在激光聚焦点的光强超过玻璃的损伤阈值而产生炸裂形成微裂纹,利用微裂纹对光的散射实现三维白色内雕。现代的着色激光内雕技术包括以下几个方面:空间选择性色心控制,离子价态操控以及纳米粒子析出。本文介绍了各种玻璃激光内雕技术的原理以及最新进展,并就今后的发展方向作了展望。

The laser technique of internal engraving in glass has been developed in two stages,namely,traditional white internal engraving and modern colored internal engraving.Traditional white internal engraving is formed by scanning pulsed laser when the light intensity at the focal point inside the transparent glass is much higher than the glass damage threshold,resulting in the formation of micro-cracks near the focal point of the laser beam.Three-dimensional white color internal engraving is realized due to the light scattering of the micro-cracks.The laser techniques of modern colored glass internal engraving involve space-selective control of color centers,valence state manipulation and precipitation of metal nano-particles.Recent developments on the laser techniques of glass internal engrave are introduced,and the future studies are discussed.