A comparison of laser tissue cutting on bovine muscle samples, by a COZ-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 mum. 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 degreesC.
Tissue cutting by ultrashort pulses from a Ti-zaffire laser system: Strong reduction of thermal alteration around the cutting line / Fazio, Eugenio; A., Bosco; LI VOTI, Roberto; Frega, Antonio; Ruco, Luigi; Lukic, Ankica; Moscarini, Massimo. - STAMPA. - 5610:(2004), pp. 68-74. (Intervento presentato al convegno Annual Laser Florence 2003 Conference tenutosi a Florence, ITALY nel NOV 06-08, 2003) [10.1117/12.584381].
Tissue cutting by ultrashort pulses from a Ti-zaffire laser system: Strong reduction of thermal alteration around the cutting line
FAZIO, Eugenio;LI VOTI, Roberto;FREGA, Antonio;RUCO, Luigi;LUKIC, Ankica;MOSCARINI, Massimo
2004
Abstract
A comparison of laser tissue cutting on bovine muscle samples, by a COZ-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 mum. 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 degreesC.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
