Laser damage thresholds (ED50) at 1319 nm for skin using Yucatan mini-pig (Sus scrofa domestica) have been detennined and are compared to results from previous studies. The most recent data are compared to results reported previously for the operational wavelengths of 1070 nm , 1214 nm , 1940 nm and 2000 nm . For the 1319-nm data, which compare favorably to 1214-nm data, a relatively narrow range of total radiant exposure from 19.3 J/cm2 to 30.5 J/cm2 was observed for threshold damage with laser parameters encompassing a factor of two in beam area and a factor of forty in exposure duration. For similar exposure parameters, threshold values range from 5.8 J/cm2 to 11.2 J/cm2 at the more highly absorbed wavelength of 2000 nm at one extreme and 26.1 J/cm2 to 202 J/cm2 for the more weakly absorbed rapiation at 1070 nm at the other extreme.
Skin damage thresholds with continuous-wave laser exposures at near infrared wavelengths
Jeffrey W. Oliver, Corey A. Harbert, Harvey M. Hodnett, Gary D. Noojin, Kurt J. Schuster, Aurora D. Shingledecker, David J. Stolarski; November 27–30, 1990. "Skin damage thresholds with continuous-wave laser exposures at near infrared wavelengths." Proceedings of the International Laser Safety Conference. ICALEO® 2011: 30th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Cincinnati, Ohio, USA. (pp. pp. 196-199). ASME. https://doi.org/10.2351/1.5056747
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