Tellurite And Fluorotellurite Glasses For Active And Passive

6. Optical properties; MDO 205
Absorption coefficient / cm -1
0.045
0.040
FTIR data
Gaussian fit
Weak OH (2929 cm -1 )
Free OH (3325 cm -1 4.0 3.8 3.6 3.4 3.2 3.0 2.8
)
Baseline: y=[300/x]^4+0.085
Chi^2 = 1.8696E-6
R^2 = 0.97106
0.035
0.030
0.025
0.020
0.015
0.010
0.005
0.000
Wavenumber / µm
y0 0 ±0
xc1 2928.84928 ±3.27502
w1 316.76352 ±4.61077
A1 10.56497 ±0.21583
xc2 3324.76736 ±5.6002
w2 325.97132 ±8.47342
A2 6.4648 ±0.21944
2600 2800 3000 3200 3400 3600
Wavenumber / cm -1
Fig. (6.29) shows the Gaussian deconvolution of the OH bands for glass MOF004
(60TeO2-10Na2O-30ZnF2 mol. %).
Absorption coefficient / cm -1
0.03
0.02
0.01
0.00
Wavelength / µm
0.08
FTIR data
0.07
Gaussian fit
Weak OH (2918 cm
0.06
0.05
0.04
-1 )
Free OH (3309 cm -1 4.0 3.8 3.6 3.4 3.2 3.0 2.8
Baseline: y=[750/x]^4+0.186
)
Chi^2 = 9.0975E-6
R^2 = 0.94972
y0 0 ±0
xc1 2918.79185 ±3.08166
w1 300.85738 ±5.1053
A1
xc2
16.26827
3309.47903
±0.30903
±6.85275
w2 283.50284 ±11.44175
A2 6.54356 ±0.30886
2600 2800 3000 3200 3400 3600
Wavenumber / cm -1
Fig. (6.30) shows the Gaussian deconvolution of the OH bands for glass MOF001
(65TeO2-10Na2O-25ZnF2 mol. %).
45
40
35
30
25
20
15
10
5
0
80
70
60
50
40
30
20
10
0
Loss / dB.m -1
Loss / dB.m -1