Ultrafast Laser Microwelding using Filamentation - Osaka University

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Joining strength and transmittance 15.3 MPa 14.9 MPa 71.5 % 73.2 % 10 15.1 MPa 15.0 MPa 10 72.6 % 73.0 % Pulse Energy [µJ/pulse] 15.2 MPa 15.0 MPa 14.9 MPa Pulse Energy [µJ/pulse] 71.8 % 73.0 % 73.4 % 15.2 MPa 14.9 MPa 72.1 % 73.6 % 14.9 MPa 0.1 1 Scanning Speed [mm/s] 88.3 % 0.1 1 Scanning Speed [mm/s] Joining strength Optical transmittance 12
Effects of Annealing ( silica glass & silica glass) Welded part Micrograph before annealing 100 µm 100 µm Micrograph after annealing Annealing makes welded part invisible. (Implication of disappearance of defects.) 13
Page 1 and 2: Filament 08, 2nd International Symp
Page 3 and 4: Filamentation - balancing between s
Page 5 and 6: - Ultra-fast laser micro-welding of
Page 7 and 8: Optical setup Samples Fixture Setup
Page 9 and 10: Joining strength (Same material) Pu
Page 11: Heterogeneous welding: 10 Pulse Ene
Page 15 and 16: Enhancement of optical transmittanc
Page 17 and 18: Heterogeneous welding: Material *Th
Page 19 and 20: (a) Side view (b) Top view (c) Whol
Page 21 and 22: Comparison with ns-pulse welding 30
Page 23 and 24: Difference of heat sources Femtosec
Page 25 and 26: Hermetic ceiling of ceramic package
Page 27 and 28: Summary -Ultra-fast laser micro-wel

Ultrafast Laser Microwelding using Filamentation - Osaka University

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