Laser ablation rate of materials using the generated acoustic waves

It is shown that the acoustic waves generated during laser ablation can be used to determine the ablation threshold and the ablation rate for different fluences and depths and also to characterize the different regions of the process. On-line measurement of the individual ablation rate is possible b...

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Veröffentlicht in:	Journal of physics. D, Applied physics Applied physics, 1998-10, Vol.31 (19), p.2648-2652
Hauptverfasser:	Efthimiopoulos, T, Kritsotakis, E, Kiagias, H, Savvakis, C, Bertachas, Y
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustical measurements and instrumentation Acoustics Applied sciences Condensed matter: electronic structure, electrical, magnetic, and optical properties Electron and ion emission by liquids and solids impact phenomena Exact sciences and technology Fundamental areas of phenomenology (including applications) Impact phenomena (including electron spectra and sputtering) Laser-beam impact phenomena Physics Polymer industry, paints, wood Properties and testing Technology of polymers Testing and control
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Beschreibung
Zusammenfassung:	It is shown that the acoustic waves generated during laser ablation can be used to determine the ablation threshold and the ablation rate for different fluences and depths and also to characterize the different regions of the process. On-line measurement of the individual ablation rate is possible by observation of the delay of the arrival of the acoustic wave to a piezoelectric detector located behind the sample. Material studied: PMMA.
ISSN:	0022-3727 1361-6463
DOI:	10.1088/0022-3727/31/19/039