Temporal shape of high-irradiance pulse influence on biological tissue disruption

Ludmila V. Chernyshova; Ruslan V. Smirnov

doi:10.1117/12.477649

27 August 2003 Temporal shape of high-irradiance pulse influence on biological tissue disruption

Ludmila V. Chernyshova, Ruslan V. Smirnov

Proceedings Volume 4961, Laser-Tissue Interaction XIV; (2003) https://doi.org/10.1117/12.477649
Event: Biomedical Optics, 2003, San Jose, CA, United States

Abstract

In present work an analysis of the existing experimental data has been carried out on the ablation of biological tissue (skin, cornea, bone) under high-irradiance laser beam ~109W/cm² at different wavelengths λ = 0.266, 0.532, 1,064, 2.7, 2.8, 2.9 μm. Comparison of the dependence of the ablation threshold values versus the intensity and wavelength of the single incident pulse to the data obtained in experiments on hgih power pulses interaction with organic low-density targets of agar-agar allows to reveal some common mechanisms. For the above threshold intensities, the temporal pulse shape becomes decisive and together with tissue transmittacne at a definite wavelength determines the depth and character of tissue disruption and may be changed according to therapeutic destination.

Citation Download Citation

Ludmila V. Chernyshova and Ruslan V. Smirnov "Temporal shape of high-irradiance pulse influence on biological tissue disruption", Proc. SPIE 4961, Laser-Tissue Interaction XIV, (27 August 2003); https://doi.org/10.1117/12.477649

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