Pulsed laser deposition of yttria-stabilized zirconium dioxide with a high repetition rate picosecond fiber laser

We report the use of a mode-locked fiber laser in pulsed laser deposition (PLD) of yttria-stabilized zirconium oxide. The fiber laser produces picosecond pulses with megahertz repetition rates at the wavelength of 1060 nm. We have investigated the effects of the time delay and the physical overlappi...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2010-03, Vol.98 (3), p.487-490
Main Authors: Salminen, Turkka, Hahtala, Mikko, Seppälä, Ilkka, Niemi, Tapio, Pessa, Markus
Format: Article
Language:English
Subjects:
Ablation
Characterization and Evaluation of Materials
Condensed Matter Physics
Cross-disciplinary physics: materials science
rheology
Evaporation
Exact sciences and technology
Fiber lasers
Laser deposition
Machines
Manufacturing
Materials science
Methods of deposition of films and coatings
film growth and epitaxy
Nanotechnology
Optical and Electronic Materials
Physics
Physics and Astronomy
Processes
Pulsed laser deposition
Rapid Communication
Repetition
Surfaces and Interfaces
Thin Films
Time delay
Yttria stabilized zirconia
Zirconium dioxide
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Summary:We report the use of a mode-locked fiber laser in pulsed laser deposition (PLD) of yttria-stabilized zirconium oxide. The fiber laser produces picosecond pulses with megahertz repetition rates at the wavelength of 1060 nm. We have investigated the effects of the time delay and the physical overlapping of the consecutive pulses on the ablation thresholds and the properties of the deposited films. Our results show existence of two distinct evaporation modes: (1) a single pulse evaporation mode observed for low overlapping and long time delays between the pulses and (2) a high repetition rate evaporation mode for high overlapping with short delays. The first mode is characterized by evaporation of nanoparticles and clusters and yields structured films with high surface area. The second mode yields smooth films, with evaporation characteristics closer to those of thermal evaporation than traditional PLD.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-009-5482-x