DocumentCode :
1073427
Title :
Absorption phenomena in metal drilling with Nd-lasers
Author :
Allmen, M.v. ; Blaser, Peter ; Affolter, Klaus ; Sturmer, Ekkehard
Author_Institution :
University of Bern, Switzerland
Volume :
14
Issue :
2
fYear :
1978
fDate :
2/1/1978 12:00:00 AM
Firstpage :
85
Lastpage :
88
Abstract :
An experimental investigation of the breakdown of metal reflectivity under intense radiation from an Nd-laser is presented. It includes time resolved measurements of the hemispherical reflectivity and of the pertinent target damage. The experiments show the occurrence of an absorbing layer that couples up to 80 percent of the light power into the condensed metal. The layer is formed when the surface temperature corresponds to several atmospheres of vapor pressure.
Keywords :
Absorption; Drilling; Filters; Laser transitions; Optical pulses; Plasma measurements; Plasma temperature; Reflectivity; Surface emitting lasers; Time measurement;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.1978.1069739
Filename :
1069739
Link To Document :
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