Heat diffusion and ablation front dynamics in Er:YAG laser skin resurfacing

Boris Majaron; Matjaz Lukac; Brigita Drnovsek-Olup; Boris Vedlin; Aleksander Rotter

doi:10.1117/12.275028

22 May 1997 Heat diffusion and ablation front dynamics in Er:YAG laser skin resurfacing

Boris Majaron, Matjaz Lukac, Brigita Drnovsek-Olup, Boris Vedlin, Aleksander Rotter

Proceedings Volume 2970, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems VII; (1997) https://doi.org/10.1117/12.275028
Event: BiOS '97, Part of Photonics West, 1997, San Jose, CA, United States

Abstract

Influence of pulse energy, duration and beam cross-section on the outcome of Er:YAG laser ablation of skin is interpreted on the basis of an analytical model of heat diffusion and ablation front dynamics. Derived expressions enable us to identify different ablation regimes in terms of ablation efficiency and depth of thermally affected tissue layer for any thermally driven laser ablation process. Influence of laser wavelength is also discussed, focusing on a comparison between Er:YAG and carbon-dioxide laser skin resurfacing. Preliminary experimental and clinical evidence in agreement with the model is also presented.

Citation Download Citation

Boris Majaron, Matjaz Lukac, Brigita Drnovsek-Olup, Boris Vedlin, and Aleksander Rotter "Heat diffusion and ablation front dynamics in Er:YAG laser skin resurfacing", Proc. SPIE 2970, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems VII, (22 May 1997); https://doi.org/10.1117/12.275028

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