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Proceedings Paper

Process analysis of boring with pulsed-laser irradiation
Author(s): Tsunehisa Satake; Masato Watanabe; Kazuhiko Horioka; Makoto Shiho; Yoshimori Honkura
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Paper Abstract

The boring process of various materials with KrF excimer laser was investigated by measurements of the penetration time. The parameters in this experiment were the frequency of the laser operation and the distance of the target from the laser focal point. The correlations between the penetration time and material properties such as density, thermal conductivity, coefficient of the thermal expansion, specific heat, Young's modulus and Poisson's ratio were obtained from this experiment. The penetration time was proportional to the logarithmic of the specific heat and that of the Young's modulus. Generally the target put at the focal point of the laser was penetrated most rapidly. But in the case of the quartz plate, the most rapidly penetrated point was quite in front of the laser focal point in spite of its less beam intensity.

Paper Details

Date Published: 14 January 2000
PDF: 6 pages
Proc. SPIE 3887, High-Power Lasers in Civil Engineering and Architecture, (14 January 2000); doi: 10.1117/12.375201
Show Author Affiliations
Tsunehisa Satake, Tokyo Institute of Technology (Japan)
Masato Watanabe, Tokyo Institute of Technology (Japan)
Kazuhiko Horioka, Tokyo Institute of Technology (Japan)
Makoto Shiho, Tokyo Institute of Technology (Japan)
Yoshimori Honkura, Tokyo Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 3887:
High-Power Lasers in Civil Engineering and Architecture
Sadao Nakai; Lloyd A. Hackel; Wayne C. Solomon, Editor(s)

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