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