Efficient use of Q-switched lasers in the treatment of cutaneous lesions

Xin-Hua Hu

doi:10.1117/12.209147

12 May 1995 Efficient use of Q-switched lasers in the treatment of cutaneous lesions

Xin-Hua Hu

Proceedings Volume 2395, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems V; (1995) https://doi.org/10.1117/12.209147
Event: Photonics West '95, 1995, San Jose, CA, United States

Abstract

The use of Q-switched laser has been well documented in the treatment of pigmented lesions, particularly in the tattoo removal. To better understand the ablation process by Q-switched lasers, we carried out an analysis on the states and other physical properties of certain tissue/pigment under the action of a strong transient electric field associated with the high energy nanosecond laser pulses. The dependence of the ablation threshold of transient electric field on the chromophore absorption has been found to be weak. A plasma ablation model is used to interpret previous experimental results. The comparison of the plasma model with the conventional selective photothermolysis model has led to a new design concept of Q-switched lasers for dermatology surgery.

Citation Download Citation

Xin-Hua Hu "Efficient use of Q-switched lasers in the treatment of cutaneous lesions", Proc. SPIE 2395, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems V, (12 May 1995); https://doi.org/10.1117/12.209147

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