Authors:
C. Lutz, R. Sommerhuber, M. Kettner, C. Esen, R. Hellmann
Contents:
- Ultra-short-pulsed laser ablation of thin multilayer materials can be monitored using XARION’s Eta450 Ultra optical microphone
- It is possible to monitor the material transition between polymer and copper during laser ablation by observing a broad acoustic frequency spectrum between 100 kHz and 2 MHz in air, and by detecting a sudden change in acoustic energy
- A direct correlation was found between increased detected acoustic energy and higher ablation rate
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