Proceedings Paper
Dynamics in laser cutting of soft media| Format | Member Price | Non-Member Price |
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Paper Abstract
A high speed camera was used to record time-resolved the development
and the shape of the holes drilled by Er:YAG laser pulses of high
intensity. The experimental results suggest that above a critical
radiant exposure the dynamics of the drilling mechanism changes and
driven by a high vapor pressure gradient, hydrodynamic instabilities
within the hole occur. They are evidenced by dramatic local
variations of the channel diameter and by a decrease of the
normalized recoil momentum. These instabilities influence strongly
the extent, and velocity of the ejection. It is shown that, when
cutting soft tissue, the extent of the zone of thermal damage is
determined by the amount of hot liquefied material that remains in
the hole and acts as a heat source.
Paper Details
Date Published: 1 June 1990
PDF: 12 pages
Proc. SPIE 1202, Laser-Tissue Interaction, (1 June 1990); doi: 10.1117/12.17608
Published in SPIE Proceedings Vol. 1202:
Laser-Tissue Interaction
Steven L. Jacques, Editor(s)
PDF: 12 pages
Proc. SPIE 1202, Laser-Tissue Interaction, (1 June 1990); doi: 10.1117/12.17608
Show Author Affiliations
Martin Frenz, Univ. of Bern (Switzerland)
Adrian D. Zweig, Univ. of Bern (Switzerland)
Valerio Romano, Univ. of Bern (Switzerland)
Adrian D. Zweig, Univ. of Bern (Switzerland)
Valerio Romano, Univ. of Bern (Switzerland)
Heinz P. Weber, Univ. of Bern (Switzerland)
N. I. Chapliev, General Physics Institute (Russia)
Alexander S. Silenok, General Physics Institute (Russia)
N. I. Chapliev, General Physics Institute (Russia)
Alexander S. Silenok, General Physics Institute (Russia)
Published in SPIE Proceedings Vol. 1202:
Laser-Tissue Interaction
Steven L. Jacques, Editor(s)
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