Burst-mode ultrafast laser welding joins sapphire and Invar across 10 μm gaps with 6.3 MPa shear strength.
Direct microwelding of dissimilar glass and Kovar alloy without optical contact using femtosecond laser pulses,
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Burst-Mode Ultrafast Laser Welding of Sapphire and Invar Alloy Across Large Interfacial Gaps up to 10 $\mu$m
Burst-mode ultrafast laser welding joins sapphire and Invar across 10 μm gaps with 6.3 MPa shear strength.