Novel fusion welding technology of glass using ultrashort pulse lasers
Novel fusion welding technology of glass using ultrashort pulse lasers
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DOI：
10.1016/j.phpro.2010.08.171
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
I. Miyamoto;K. Cvecek;Y. Okamoto;Michael Schmidt
中科院分区：
文献类型：
--
作者：
I. Miyamoto;K. Cvecek;Y. Okamoto;Michael Schmidt
提出了一种新的玻璃熔接技术，采用高重复频率超短激光脉冲，通过非线性过程在界面处选择性地吸收激光能量，实现无裂纹熔接，无需预热和后热。建立了超短脉冲激光与物质相互作用模型，计算了超短脉冲激光在玻璃中的能量分布。推导了玻璃熔体三维瞬态温度分布和熔体尺寸的热传导方程。考虑到玻璃板之间的光学接触的吸引力，以保持高温等离子体在大块玻璃中所需的焊接接头的机械强度进行评估。
A novel fusion welding technology of glass using ultrashort laser pulses with high pulse repetition rates has been developed, where the laser energy is selectively absorbed at the interface by nonlinear process to provide crack-free welding without preand post-heating. A laser-matter interaction model is developed to evaluate the distribution of the ultrashort pulse laser energy absorbed in bulk glass. A thermal conduction equation is derived to calculate transient 3-dimensional temperature distribution and dimensions of molten zone in glass. The mechanical strength of weld joint is evaluated taking into consideration of the attracting force of the optical contact between the glass plates needed for keeping the high-temperature plasma in the bulk glass.