Tellurite And Fluorotellurite Glasses For Active And Passive

6. Optical properties; MDO 207
Absorption coefficient / cm -1
0.06
FTIR data
0.05
Gaussian fit
Weak OH (2947 cm
0.04
0.03
-1 )
Free OH (3324 cm -1 4.0 3.8 3.6 3.4 3.2 3.0 2.8
Baseline: y=[875/x]^4+0.431
Chi^2 = 2.9932E-6
R^2 = 0.9856
)
y0 0 ±0
xc1 2946.91761 ±2.12554
w1
A1
400.39325
23.42574
±3.73518
±0.22293
xc2 3324.31284 ±3.00352
w2 231.94867 ±5.34024
A2 5.16635 ±0.20654
0.02
0.01
0.00
Wavelength / µm
2600 2800 3000 3200 3400
0
3600
Wavenumber / cm -1
Fig. (6.33): Gaussian deconvolution of the OH bands for glass MOF007 (80TeO2-
10Na2O-10ZnF2 mol. %).
Absorption coefficient / cm -1
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
FTIR data
Gaussian fit
Weak OH (2924 cm -1 )
Free OH (3274 cm -1 )
Wavelength / µm
4.0 3.8 3.6 3.4 3.2 3.0 2.8
0.00
0
2400 2600 2800 3000 3200 3400 3600
Wavenumber / cm -1
Baseline: [1240/x]^4+0.52
Chi^2 = 0.00002
R^2 = 0.98872
y0 0 ±0
xc1 2923.5899 ±3.9576
w1 406.04562 ±5.26077
A1 57.63908 ±1.01847
xc2 3273.534 ±5.26013
w2 272.93229 ±7.16477
A2 15.01855 ±0.98824
Fig. (6.34): Gaussian deconvolution of the OH bands for glass MOF008 (85TeO2-
10Na2O-5ZnF2 mol. %).
60
50
40
30
20
10
160
140
120
100
80
60
40
20
Loss / dB.m -1
Loss / dB.m -1