Title :
Acoustic wave monitoring in pulsed laser interaction with materials
Author :
Lu, Y.F. ; Hong, M.H. ; Chua, S.J. ; Low, T.S.
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
Audible acoustic waves generated during laser interaction with Al surface are studied, to monitor the interaction and to reflect the nature of interactions such as laser ablation and surface cleaning. The fast Fourier transform spectral analysis method was used to study the acoustic wave generation and to establish a relationship between the acoustic waves and laser ablation rate or cleaning efficiency.
Keywords :
acoustic emission testing; aluminium; fast Fourier transforms; laser ablation; photoacoustic effect; surface cleaning; Al; ablation rate; acoustic wave generation; cleaning efficiency; fast Fourier transform spectral analysis; laser ablation; optoacoustic effect; pulsed laser interaction; surface cleaning; Acoustic materials; Acoustic pulses; Acoustic waves; Laser ablation; Monitoring; Optical materials; Optical pulses; Surface acoustic waves; Surface cleaning; Surface emitting lasers;
Conference_Titel :
Advanced Applications of Lasers in Materials Processing/Broadband Optical Networks/Smart Pixels/Optical MEMs and Their Applications. IEEE/LEOS 1996 Summer Topical Meetings:
Conference_Location :
Keystone, CO, USA
Print_ISBN :
0-7803-3175-3
DOI :
10.1109/LEOSST.1996.540660
