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Proceedings Paper

Surface morphology and ablation characteristics of two XeCl excimer lasers: a comparison of pulse-duration effect
Author(s): Joseph Neev; Lih-Huei L. Liaw; Michael W. Berns
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Paper Abstract

Lasers are rapidly gaining recognition as an effective tool for dental hard tissue procedures. The prospect of using UV lasers for modifying tooth structure is severely limited by the question of delivery mode. One class of UV laser which can be delivered through optical fibers are the XeCl excimer lasers with a pulse duration of 120 ns which are also used for angioplasty procedures. In this study we compared morphological and thermal characteristics of the two XeCl excimer lasers. The study also shed some light on plasma emission and its role in ablative processes. It is shown that the two lasers exhibit relatively similar characteristics. However, while temperature effects are quite similar and ablation rates are slightly improved during longer pulse ablation, morphological structures as indicated by SEM are quite different, illustrating a different role and effect for the laser plasma.

Paper Details

Date Published: 1 May 1995
PDF: 8 pages
Proc. SPIE 2394, Lasers in Dentistry, (1 May 1995); doi: 10.1117/12.207440
Show Author Affiliations
Joseph Neev, Beckman Laser Institute and Medical Clinic (United States)
Lih-Huei L. Liaw, Beckman Laser Institute and Medical Clinic (United States)
Michael W. Berns, Beckman Laser Institute and Medical Clinic (United States)


Published in SPIE Proceedings Vol. 2394:
Lasers in Dentistry
Harvey A. Wigdor; John D. B. Featherstone; Joel M. White, Editor(s)

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