Ablation of skin tissue by nanosecond laser pulses at 1064, 532, 266, and 213 nm

Xin-Hua Hu; Qiyin Fang; Mickael J. Cariveau; X. Pan; Gerhard W. Kalmus

doi:10.1117/12.388028

13 June 2000 Ablation of skin tissue by nanosecond laser pulses at 1064, 532, 266, and 213 nm

Xin-Hua Hu, Qiyin Fang, Mickael J. Cariveau, X. Pan, Gerhard W. Kalmus

Proceedings Volume 3914, Laser-Tissue Interaction XI: Photochemical, Photothermal, and Photomechanical; (2000) https://doi.org/10.1117/12.388028
Event: BiOS 2000 The International Symposium on Biomedical Optics, 2000, San Jose, CA, United States

Abstract

The ablation of porcine skin tissue has been investigated using nanosecond (ns) laser pulses at the wavelengths of 1064, 532 and 266 nm. The ablation probability has been measured near the threshold through detection of the secondary radiation from the tissue sample surface at different wavelengths. Experimental results have indicated that the ablation of the skin tissue in the wide range of ablating wavelength is caused by optical breakdown induced by the strong electromagnetic field of the nanosecond pulses. Furthermore, we conclude that the initial seed electrons acquire ionization energy from the incident optical field mainly through a momentum-relaxing drift mechanism.

Citation Download Citation

Xin-Hua Hu, Qiyin Fang, Mickael J. Cariveau, X. Pan, and Gerhard W. Kalmus "Ablation of skin tissue by nanosecond laser pulses at 1064, 532, 266, and 213 nm", Proc. SPIE 3914, Laser-Tissue Interaction XI: Photochemical, Photothermal, and Photomechanical, (13 June 2000); https://doi.org/10.1117/12.388028

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