Cathodoluminescence (CL) is a non-destructive technique to characterize optical and
electronic properties of nanostructures in many kinds of materials. Major subject is to
investigate basic parameters in semiconductors, impurities in oxides and phase
determination of minerals. CL is similar to photoluminescence (PL) technique, but the
excitation by high energy electrons can produce all the transition to the higher energy
excitation states and induce light emission in the wide energy range concerned with
versatile types of electronic transitions in materials....