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Proceedings Paper

Tissue cutting by ultrashort pulses from a Ti-Zaffire laser system: strong reduction of thermal alteration around the cutting line
Author(s): Eugenio Fazio; Alessio Bosco; Roberto Li Voti; A. Frega; L. Ruco; A. Lukic; M. Moscarini
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Paper 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.

Paper Details

Date Published: 10 September 2004
PDF: 7 pages
Proc. SPIE 5610, Laser Florence 2003: A Window on the Laser Medicine World, (10 September 2004); doi: 10.1117/12.584381
Show Author Affiliations
Eugenio Fazio, Univ. degli Studi di Roma La Sapienza (Italy)
Alessio Bosco, Univ. degli Studi di Roma La Sapienza (Italy)
Roberto Li Voti, Univ. degli Studi di Roma La Sapienza (Italy)
A. Frega, Univ. degli Studi di Roma La Sapienza (Italy)
L. Ruco, Univ. degli Studi di Roma La Sapienza (Italy)
A. Lukic, Univ. degli Studi di Roma La Sapienza (Italy)
M. Moscarini, Univ. degli Studi di Roma La Sapienza (Italy)


Published in SPIE Proceedings Vol. 5610:
Laser Florence 2003: A Window on the Laser Medicine World
Leonardo Longo; Alfons G. Hofstetter; Mihail-Lucian Pascu; Wilhelm R. A. Waidelich, Editor(s)

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