Laser ablation deposition measurements from silver and nickel
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The deposition rate for laser ablated metals has been studied in a standard geometry for fluences up to 20J/cm2. The rate for silver and nickel is a few percent of a monolayer per pulse at the laser wavelengths 532 nm and 355 nm. The rate for nickel is significantly higher than that for silver at 532 nm, whereas the rate for the two metals is similar at 355 nm. This behaviour disagrees with calculations based on the thermal properties at low intensities as well as predictions based on formation of an absorbing plasma at high intensities. The deposition rate falls strongly with increasing pressure of the ambient gases, nitrogen and argon.
PACS79.20 Ds 81 15 Fg
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