| Issue |
Europhys. Lett.
Volume 51, Number 6, September II 2000
|
|
|---|---|---|
| Page(s) | 674 - 678 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2000-00391-2 | |
| Published online | 01 September 2002 | |
Time-resolved photography of the plasma-plume and ejected particles in laser ablation of polytetrafluoroethylene
Angewandte Physik, Johannes-Kepler-Universität Linz - A-4040 Linz, Austria
Corresponding author: johannes.heitz@jk.uni-linz.ac.at
Received:
12
May
2000
Accepted:
17
July
2000
KrF-excimer laser ablation of sintered-powder PTFE targets is successfully
used for the deposition of high-quality thin films. The mechanism is based
on the high extinction of the pressed-powder targets which causes more efficient
dissipation of the incident laser-light energy. As a result, a strongly forward-directed
jet of PTFE particles is generated. This jet is investigated by means of
a gated ICCD-camera. While the expansion of the visible plume starts with
the laser pulse and lasts for about 
, the particle jet can be observed
within a time interval between about 
and more than 
after the
laser pulse.
PACS: 79.20.Ds – Laser-beam impact phenomena / 61.41.+e – Polymers, elastomers, and plastics / 07.68.+m – Photography, photographic instruments and techniques; xerography
© EDP Sciences, 2000
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