Effects of spherical aberrations on micro welding of glass using ultra short laser pulses
Effects of spherical aberrations on micro welding of glass using ultra short laser pulses
复制标题
球差对超短激光脉冲玻璃微焊接的影响
DOI：
10.1016/j.phpro.2012.10.074
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Michael Schmidt
中科院分区：
文献类型：
--
作者：
K. Cvecek;I. Miyamoto;M. Adam;Michael Schmidt
在利用超短激光脉冲进行玻璃微焊接时，需要高数值孔径的聚焦物镜来通过非线性过程产生等离子体。然而，由于通过玻璃样品的平面表面的强聚焦，发生强球面像差，这增加了启动非线性吸收过程所需的功率。在目前的工作中，实验研究了球差对熔化区形状的影响，对等离子体产生所需的脉冲能量。
In micro-welding of glass by means of ultra-short laser pulses focusing objective lenses with a high numerical aperture are necessary to generate plasma by nonlinear processes. However, due to the strong focus through the plane surface of the glass samples strong spherical aberrations occur, which increase the necessary power to start the nonlinear absorption processes. The influence of the spherical aberrations on the shape of the molten zone, on the pulse energy necessary for plasma generation is studied experimentally in the present work.