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Title: Laser ablation of solid substrates in water and ambient air
Authors: Zhu, S.
Lu, Y.F. 
Hong, M.H. 
Chen, X.Y.
Issue Date: 15-Feb-2001
Citation: Zhu, S., Lu, Y.F., Hong, M.H., Chen, X.Y. (2001-02-15). Laser ablation of solid substrates in water and ambient air. Journal of Applied Physics 89 (4) : 2400-2403. ScholarBank@NUS Repository.
Abstract: Laser ablation of solid substrates in ambient air and under water is investigated. It is found that the laser ablation rate is highly enhanced by the water film. A wide-band microphone is used to detect the audible acoustic wave generated during laser ablation. Peak-to-peak amplitude of the acoustic wave recorded in water confinement regime (WCR) is greater than that recorded in ambient. It is assumed that the plasma generated in WCR induces a much stronger pressure. This high-pressure, high-temperature plasma results in a much higher ablation rate. Theoretical calculation is also carried out to verify this assumption. By proper calibration, acoustic wave detection can be used as a real-time monitoring of the laser ablation. © 2001 American Institute of Physics.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.1342200
Appears in Collections:Staff Publications

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