Tellurite And Fluorotellurite Glasses For Active And Passive

6. Optical properties; MDO 212
Absorption coefficient / cm -1
0.05
0.04
0.03
0.02
0.01
Wavelength / µm
4.0 3.8 3.6 3.4 3.2 3.0 2.8
FTIR data
Gaussian fit
Weak OH (2921 cm -1 )
Free OH (3296 cm -1 )
Baseline: y=[880/x]^4+0.353
Chi^2 = 1.4739E-6
R^2 = 0.98791
y0 0 ±0
xc1 2921.06453 ±3.59441
w1 363.43214 ±4.5193
A1 16.4014 ±0.30794
xc2 3295.61299 ±6.38861
w2 310.12104 ±8.24458
A2 6.27985 ±0.30977
0.00
2400 2600 2800 3000 3200
Wavenumber / cm
3400 3600
-1
Fig. (6.39): Gaussian deconvolution of OH bands in glass MOF011 (65TeO2-10ZnF2-
15ZnO-10Na2O mol. %).
Absorption coefficient / cm -1
0.045
0.040
0.035
0.030
0.025
0.020
0.015
0.010
0.005
Wavelength / µm
4.0 3.8 3.6 3.4 3.2 3.0 2.8
FTIR data
Gaussian fit
Weak OH (2933 cm -1 )
Free OH (3322 cm -1 )
Baseline: y=[910/x]^4+0.313
Chi^2 = 1.4392E-6
R^2 = 0.98537
y0 0 ±0
xc1 2933.11494 ±2.67216
w1 376.3538 ±4.04631
A1 15.53585 ±0.20036
xc2 3322.34243 ±4.19987
w2 281.23599 ±6.20708
A2 5.25006 ±0.19676
0.000
2400 2600 2800 3000 3200 3400 3600
Wavenumber / cm -1
Fig. (6.40): Gaussian deconvolution of OH bands in glass MOF012 (65TeO2-5ZnF2-
20ZnO-10Na2O mol. %).
50
40
30
20
10
0
45
40
35
30
25
20
15
10
5
0
Loss / dB.m -1
Loss / dB.m -1