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Two‐lasers assisted ablation: A method for enhancing conventional laser ablation of materials
Author(s) -
Neev Joseph,
Lee Jon P.
Publication year - 1996
Publication title -
lasers in surgery and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 112
eISSN - 1096-9101
pISSN - 0196-8092
DOI - 10.1002/(sici)1096-9101(1996)19:2<130::aid-lsm2>3.0.co;2-t
Subject(s) - ablation , laser , impulse (physics) , materials science , laser ablation , irradiation , optics , radiation , optoelectronics , biomedical engineering , physics , medicine , quantum mechanics , nuclear physics
A new method for enhanced ablation by pulsed laser radiation has been demonstrated. The method utilizes an “impulse” ablation laser in conjunction with cyclical heating of the tissue by an auxiliary source: the “primer.” In this study we use an auxiliary laser as the “primer” heat source, which sets up a thermal and stress field modulation in the target material. The cyclical stress associated with the thermal modulation reduces material strength thus enhancing ablation (larger mass removed per pulse) by the “impulse” laser. Ablation rate enhancement of more than twice the single‐laser value is demonstrated. © 1996 Wiley‐Liss, Inc.