Figure 5:
Excitation spectrum (a), (
nm) of Mn
2+
in (Sr
0.98
, Mn
0.02
)
2
SiO
4
and emission spectrum (b), (
nm) of Dy
3+
in (Sr
0.99
, Dy
0.01
)
2
SiO
4
. Excitation (c), (
nm) and emission (d), (
nm) spectra of Mn
2+
in (Sr
0.97
, Mn
0.02
, Dy
0.01
)
2
SiO
4
.
