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Article
Infrared skin damage thresholds from 1319-nm continous-wave laser exposures
Journal of Biomedical Optics
  • Gavin D. Buffington, Fort Hays State University
  • Clifton D. Clark, Fort Hays State University
Document Type
Article
Publication Date
12-1-2013
Rights
© The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Creative Commons License
Creative Commons Attribution 3.0
DOI
http://dx.doi.org/10.1117/1.JBO.18.12.125002
Abstract

A series of experiments were conducted in vivo using Yucatan miniature pigs (Sus scrofa domestica) to determine thermal damage thresholds to the skin from 1319-nm continuous-wave Nd:YAG laser irradiation. Experiments employed exposure durations of 0.25, 1.0, 2.5, and 10 s and beam diameters of ∼0.6 and 1 cm. Thermal imagery data provided a time-dependent surface temperature response from the laser. A damage endpoint of fifty percent probability of a minimally visible effect was used to determine threshold for damage at 1 and 24 h postexposure. Predicted thermal response and damage thresholds are compared with a numerical model of opticalthermal interaction. Resultant trends with respect to exposure duration and beam diameter are compared with current standardized exposure limits for laser safety. Mathematical modeling agreed well with experimental data, predicting that though laser safety standards are sufficient for exposures <10 s, they may become less safe for very long exposures. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI. [DOI: 10.1117/1.JBO.18.12.125002]

Citation Information
Jeffrey W. Oliver ; Rebecca Vincelette ; Gary D. Noojin ; Clifton D. Clark ; Corey A. Harbert, et al. "Infrared skin damage thresholds from 1319-nm continuous-wave laser exposures", J. Biomed. Opt. 18(12), 125002 (Dec 16, 2013). ; http://dx.doi.org/10.1117/1.JBO.18.12.125002