Tellurite And Fluorotellurite Glasses For Active And Passive

6. Optical properties; MDO 202
6.2.1.2. Infrared spectroscopy of fluorotellurite glasses
Infrared spectroscopy of series (90-x)TeO2-10Na2O-xZnF2 mol. %, for 5 ≤ x ≤ 30 mol. %
Fig. (6.26) shows the infrared spectra of glasses of the series (90-x)TeO2-10Na2O-xZnF2,
mol. %, for 5 ≤ x ≤ 30 mol. % (glasses MOF001, 004 to 008). Glass MOD013 (80TeO2-
10Na2O-10ZnO mol. %) was also plotted for comparison. The y-axis was splayed, for
presentation purposes and hence the numbers on the y-axis only apply to the 30 mol. %
ZnF2 glass. [5].
Absorption coefficient / cm -1
1.50
1.25
1.00
0.75
0.50
0.25
0.00
Wavelength / µm
6 5 4 3 2
Series: 90-xTeO 2 .10Na 2 O.xZnF 2
Oxide: 80TeO 2 -10Na 2 O-10ZnO
2000 3000 4000 5000 6000 7000
Wavenumber / cm -1
Mol. % ZnF 2
0 (oxide)
5
10
15
20
25
30
Fig. (6.26): Infrared spectra of glasses of the series (90-x)TeO2-10Na2O-xZnF2, mol. %,
for 5 ≤ x ≤ 30 mol. % (glasses MOF001, 004 to 008). Glass MOD013 (80TeO2-10Na2O-
10ZnO mol. %) plotted for comparison [5].