Authors : Hegde V., Hegde H., Dwaraka V . C.S., Mahato K.K and Kamath S.D.
Page Nos : 274-278
Description :
A new family of novel optical glasses
10ZnO
-
5Na
2
CO
3
-
10Bi
2
O
3
–
(75
-
x) B
2
O
3
–
xEu
2
O
3
(x =0, 0.1,
0.5, 1, 1.5, 2, 3 mol %),
are synthesized by melt quench technique.
Optical properties were investigated
for their luminescence behavior through various spectroscopic techniques such as UV
-
Vis
–
NIR
absor
ption, excitation, emission, decay profiles and color measurements at room temperature.
Judd
–
Ofelt intensity parameters [Ω
2
, Ω
4
] estimated form PL spectra were used to predict the lasing properties of
the glasses like total radiative life time, branching
ratio, emission cross
-
section and optical gain.
From the
measured values of emission cross
-
sections, branching ratios, and strong photoluminescence features,
0.5mol% of Eu
3+
ions doped ZnNaBiB glasses showed optimum performance and are potential novel
opti
cal luminescent material for
red light generation at 613 nm.
