films are more likely to grow’’.
Fig. 3(a) shows emission from AlN:Er excited by 532 nm doubled
Nd:YAG laser and 783.3 nm crystal laser at room temperature.
The figure shows that Er3+ emits in green at 554 nm and 561 nm as
a result from 2H11/2?4I15/2 and 4S3/2?4I15/2 transitions. Fig. 3(b)
gives light emission from the same films in the presence of an
external magnetic field of 0.1 T. This figure indicates that the