G. Baldacchini et al., INFLUENCE OF LIF FILM GROWTH-CONDITIONS ON ELECTRON-INDUCED COLOR-CENTER FORMATION, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 116(1-4), 1996, pp. 447-451
The formation of laser active color centers in LiF films irradiated wi
th low energy electrons has been investigated as a function of the fil
m growth parameters, Spectroscopic measurements have shown that the fo
rmation efficiency of F-aggregate centers is higher in polycrystalline
films than in single crystals and can depend on the film growth condi
tions, which in turn influence the surface to volume ratio, the void p
resence and the preferred orientation of the crystallites.