Tissue cutting by ultrashort pulses from a Ti-Zaffire laser system: strong reduction of thermal alteration around the cutting line

Eugenio Fazio; Alessio Bosco; Roberto Li Voti; A. Frega; L. Ruco; A. Lukic; M. Moscarini

doi:10.1117/12.584381

10 September 2004 Tissue cutting by ultrashort pulses from a Ti-Zaffire laser system: strong reduction of thermal alteration around the cutting line

Eugenio Fazio, Alessio Bosco, Roberto Li Voti, A. Frega, L. Ruco, A. Lukic, M. Moscarini

Author Affiliations +

Proceedings Volume 5610, Laser Florence 2003: A Window on the Laser Medicine World; (2004) https://doi.org/10.1117/12.584381
Event: Laser Florence 2003: A Window on the Laser Medicine World, 2003, Florence, Italy

Abstract

A comparison of laser tissue cutting on bovine muscle samples, by a CO₂-CW laser and by a short-pulse (1 ps) amplified Ti-ZAFFIRE laser, has been performed. The CO₂ laser application shows a large area of burned tissue, whose extension can be as large as 300-400 μm. The Ti-ZAFFIRE laser application shows a sharp cutting line, without burned tissue around. Numerical simulations of the temperature increasing using repetitive (1 kHz) short pulses reveal that after 1/10 sec of application of 0.5 W of average power, the local temperature has reached the evaporation value of about 300-350°C.

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Eugenio Fazio, Alessio Bosco, Roberto Li Voti, A. Frega, L. Ruco, A. Lukic, and M. Moscarini "Tissue cutting by ultrashort pulses from a Ti-Zaffire laser system: strong reduction of thermal alteration around the cutting line", Proc. SPIE 5610, Laser Florence 2003: A Window on the Laser Medicine World, (10 September 2004); https://doi.org/10.1117/12.584381

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