A study has been undertaken of the ion milling properties of ZnS:Mn, Y2O3,
Si3N4, SiO2, SiOxNy, and Al versus the etching time, the acceleration volta
ge, and the angle of incidence of the ion beam, Different ZnS:Mn etched pro
files have been fabricated by modifying the angle of incidence; these are i
n agreement with the reported simulations.