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Title: Surface nanostructuring and optical activation of lithium fluoride crystals by ion beam irradiation

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.2177660· OSTI ID:20778790
; ; ; ; ;  [1]
  1. Physics Department, University of Genova, V. Dodecaneso 33, 16146 Genova (Italy)

We present results on simultaneous nanostructuring and optical activation of lithium fluoride crystals by 800 eV off-normal Ar{sup +} sputtering at different ion doses. The samples were studied by atomic force microscopy and optical spectroscopy. After ion irradiation smoothening of the initial random roughness is achieved and well-defined self-organized ripple structures appear, having a mean periodicity of 30 nm and a mean height of 3 nm. The simultaneous optical activation of the irradiated samples is due to the stable formation of electronic defects with intense photoluminescence in the visible spectral range.

OSTI ID:
20778790
Journal Information:
Applied Physics Letters, Vol. 88, Issue 10; Other Information: DOI: 10.1063/1.2177660; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
Country of Publication:
United States
Language:
English