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Calculation of crater shape in pulsed laser ablation of hard tissues
Lasers in Surgery and Medicine
|February 26, 1999
Abstract
Background And Objective:
An expression describing the ablation crater shape as a function of lateral fluence distribution has been derived in a recent paper by Ostertag et al. [Lasers Surg Med 1997; 21:384-394].
Study Design/Materials And Methods:
The ablation model presented therein is improved by taking into account the influence of the ablation front inclination on the ablation dynamics.
Results:
The resulting crater profiles deviate from the previously predicted ones (which reflect the Gaussian fluence distribution of the impinging laser beam) progressively with increasing pulse fluence.
Conclusion:
The ablation front inclination must be taken into account to predict the ablation crater shapes and volumes correctly.