Mea
su
rement
s of the optical p
rope
rtie
s of E
r<
sup>3+
sup> ion
s in
st
rontium ba
rium niobate gla
ss and gla
ss ce
ramic
s have been ca
rried out. The gla
sse
s have been fab
ricated u
sing a melt-quenching method, and the gla
ss ce
ramic
sample
s have been obtained f
rom the gla
ss p
recu
rso
r by a the
rmal t
reatment. The ce
ramic
sample
s fo
rmed by a gla
ssy pha
se, and a c
ry
stalline pha
se contain
s nanoc
ry
stal
s of S
r<
sub>1−
sub>
<sub>xsub>Ba
<sub>xsub>Nb<
sub>2
sub>O<
sub>6
sub> (SBN) doped with E
r<
sup>3+
sup> ion
s with a mean
size of
src="http://www.
sciencedi
rect.com/
scidi
rimg/entitie
s/223c.gif" alt="not, ve
rt,
simila
r" title="not, ve
rt,
simila
r" bo
rde
r="0">50 nm, a
s confi
rmed with XRD. G
reen up-conve
rsion emi
ssion ha
s been obtained unde
r excitation at 800 nm, and the tempo
ral evolution of thi
s emi
ssion ha
s been
repo
rted with the pu
rpo
se of dete
rmining the involved up-conve
rsion mechani
sm. The
se optical mea
su
re
s have confi
rmed that the E
r<
sup>3+
sup> ion
s have been inco
rpo
rated into the SBN mat
rix, afte
r a the
rmal t
reatment, which p
roduced an inc
rement of the up-conve
rsion efficiency.