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Journal Articles Applied Physics Letters Year : 2004

Surface density enhancement of gold in silica film under laser irradiation at 355 nm

Abstract

In order to understand the damage mechanisms inside the optics of the high power laser facilities, a model sample has been prepared by introducing gold nanoparticles into a silica film. The mean diameter of the gold clusters is 2.5 nm. Different parts of the sample were irradiated at wavelength 355 nm and fluences up to 1 J/cm2. By looking with x-ray photoelectron spectroscopy at the intensity of the Au 4f peak relative to that of the Si 2p peak, a surface Au density enrichment is observed. We interpret this as indicating that the gold atoms migrate toward the surface upon the laser irradiation.
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Dates and versions

in2p3-00102652 , version 1 (02-10-2006)

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P. Jonnard, G. Dufour, J.-L. Rullier, J.-P. Morreeuw, J.T. Donohue. Surface density enhancement of gold in silica film under laser irradiation at 355 nm. Applied Physics Letters, 2004, 85, pp.591-593. ⟨10.1063/1.1777391⟩. ⟨in2p3-00102652⟩
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