Tellurite And Fluorotellurite Glasses For Active And Passive

6. Optical properties; MDO 211
Absorption coefficient / cm -1
0.025
0.020
0.015
0.010
0.005
0.000
Wavelength / µm
4.0 3.8 3.6 3.4 3.2 3.0 2.8
FTIR data
Gaussian fit
Weak OH (2931 cm -1 )
Free OH (3381 cm -1 )
Baseline: y=[900/x]^4+0.29
Chi^2 = 8.3774E-7
R^2 = 0.95702
y0 -0.00182 ±0.00029
xc1 2930.81625 ±2.13186
w1 377.46938 ±7.4425
A1 7.78752 ±0.25955
xc2 3380.78335 ±4.48877
w2 260.68077 ±7.17719
A2 2.66 ±0.1195
2600 2800 3000 3200 3400 3600
Wavenumber / cm -1
Fig. (6.37): Gaussian deconvolution of the OH bands in glass MOF009 (65TeO2-20ZnF2-
5ZnO-10Na2O mol. %).
Absorption coefficient / cm -1
0.035
0.030
0.025
0.020
0.015
0.010
0.005
FTIR data
Gaussian fit
Weak OH (2928 cm -1 )
Free OH (3317 cm -1 )
Wavelength / µm
4.0 3.8 3.6 3.4 3.2 3.0 2.8
Baseline: y=[800/x]^4+0.302
Chi^2 = 9.7633E-7
R^2 = 0.98342
y0 0 ±0
xc1 2927.74735 ±2.61557
w1 355.80472 ±3.96411
A1 11.30538 ±0.15113
xc2 3316.79663 ±5.02052
w2 281.89859 ±7.86377
A2 3.58595 ±0.15121
0.000
2400 2600 2800 3000 3200 3400 3600
Wavenumber / cm -1
Fig. (6.38): Gaussian deconvolution of OH bands in glass MOF010 (65TeO2-15ZnF2-
10ZnO-10Na2O mol. %).
25
20
15
10
5
0
35
30
25
20
15
10
5
0
Loss / dB.m -1
Loss / dB.m -1