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Type: 
Journal
Description: 
We present results on simultaneous nanostructuring and optical activation of lithium fluoride crystals by 800eV off-normal Ar+ 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 30nm and a mean height of 3nm. 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.
Publisher: 
American Institute of Physics
Publication date: 
6 Mar 2006
Authors: 

V Mussi, F Granone, C Boragno, F Buatier de Mongeot, U Valbusa, T Marolo, RM Montereali

Biblio References: 
Volume: 88 Issue: 10 Pages: 103116
Origin: 
Applied physics letters