An investigation of the laser-material interaction process involved in laser drilling of alumina ceramic is presented. Using high speed videography in combination with a long distance microscope, a sequence of 68 still pictures has been generated in order to monitor the time-evolution of melt ejection and plasma formation processes in a study of single shot crater formation. The objective is to achieve improved understanding of the relevant laser-material interaction mechanisms as the basis for process optimisation.
REFERENCES
1.
Gagliano
F P
and Paek
U C.
Observation of Laser-Induced Explosion of Solid Materials and Correlation with Theory
. Applied Optics
, Vol. 13
, No. 2
, February 1974
; pp 274
–279
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© 2002 Laser Institute of America.
2002
Laser Institute of America
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