@ARTICLE {3981,
author={F.  Bonfigli and M. Vincenti and S. Almaviva and R. Montereali and R.N.  Nogueira and H. Kalinowsky},
doi={10.1364/AO.48.000G38},
journal={Applied Optics},
title={Photo-induced gratings in thin color center layers on lithium fluoride},
year={2009},
month={November},
volume={48},
number={31},
pages={G38-G43},
ISSN={2155-3165}
}