Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/61737
Title: Acoustic emission in laser surface cleaning for real-time monitoring
Authors: Lu, Yong-Feng 
Aoyagi, Yoshinobu
Issue Date: 1995
Source: Lu, Yong-Feng,Aoyagi, Yoshinobu (1995). Acoustic emission in laser surface cleaning for real-time monitoring. Japanese Journal of Applied Physics, Part 2: Letters 34 (11 B) : L1557-L1560. ScholarBank@NUS Repository.
Abstract: Real-time monitoring of surface cleanness in laser dry cleaning has been achieved by monitoring the acoustic waves emitted from the substrate surface under pulsed laser irradiation. It is found that the acoustic wave emitted from the surface under laser irradiation can reflect the surface condition, i.e., the surface cleanness. Removal of surface contaminants can result in a weakened laser-induced acoustic wave. The surface cleanness, therefore, can be monitored in real time by detecting the amplitude and frequency of the acoustic wave during the laser cleaning process. This phenomenon provides the laser cleaning system with real-time feedback during the cleaning process.
Source Title: Japanese Journal of Applied Physics, Part 2: Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/61737
ISSN: 00214922
Appears in Collections:Staff Publications

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