In this paper, nanostructure formation on the surface of a YAG:Nd single crystal by ArF laser irradiation is reported. The minimum diameter and height of the observed structures are about 100 and 20 nm, respectively. The morphology of the structures, which was analyzed by both scanning electron and atomic force microscopy (SEM & AFM)), indicates the growth of structures with increasing the number of laser pulses. With irradiation of pure YAG crystals under similar experimental conditions, no nanostructures are observed on the surface of the crystal. It reveals that the formation of the nano-mounds is associated with, as Energy Dispersive X-ray (EDS) spectroscopy confirms, the presence of Nd in the structures. It seems that dopant diffusion, redistribution, and cluster formation through the strain field in the crystal lead to the nanostructure development.
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Abstract of article is published in Zhurnal Prikladnoi Spektroskopii, Vol. 82, No. 2, p. 320, March–April, 2015.
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Panahibakhsh, S., Jelvani, S., Mollabashi, M. et al. Nanostructure Formation on the Surface of YAG:Nd Crystal by ARF Laser Irradiation. J Appl Spectrosc 82, 329–335 (2015). https://doi.org/10.1007/s10812-015-0107-y
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DOI: https://doi.org/10.1007/s10812-015-0107-y