Olga Dymshits

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The creation of robust joint between different materials with notably different coefficients of thermal expansion (CTE) is an urgent task for the development of the engineering, laser technology and aerospace industry. In this regard, femtosecond laser welding is a promising technique for efficient adhesion-free bonding of transparent materials.

1. Introduction Low thermal expansion transparent glass-ceramics of the lithium aluminosilicate (LAS) system form commercially the most important glass-ceramic family [1,2].