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Tellurite And Fluorotellurite Glasses For Active And Passive

Tellurite And Fluorotellurite Glasses For Active And Passive

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6. Optical properties; MDO 206<br />

Absoprtion coefficient / cm -1<br />

0.040<br />

0.035<br />

FTIR data<br />

Gaussian fit<br />

Weak OH (2910 cm<br />

0.030<br />

-1 )<br />

Free OH (3335 cm -1 4.0 3.8 3.6 3.4 3.2 3.0 2.8<br />

y0<br />

xc1<br />

w1<br />

A1<br />

0 ±0<br />

2909.63438<br />

266.54132<br />

6.78658<br />

±2.6466<br />

±4.74881<br />

±0.13022<br />

xc2<br />

w2<br />

A2<br />

3334.87896<br />

318.78602<br />

3.99506<br />

±5.83111<br />

±12.2236<br />

±0.13983<br />

)<br />

0.025<br />

0.020<br />

0.015<br />

0.010<br />

0.005<br />

0.000<br />

Baseline: [1/x]^4+0.296<br />

Chi^2 = 3.1279E-6<br />

R^2 = 0.91157<br />

Wavelength / µm<br />

2600 2800 3000 3200 3400 3600<br />

Wavenumber / cm -1<br />

Fig. (6.31): Gaussian deconvolution of the OH bands for glass MOF005 (70TeO2-<br />

10Na2O-20ZnF2 mol. %).<br />

Absorption coefficient / cm -1<br />

0.045<br />

0.040<br />

FTIR data<br />

Gaussian fit<br />

Weak OH (2927 cm<br />

0.035<br />

-1 )<br />

Free OH (3343 cm -1 4.0 3.8 3.6 3.4 3.2 3.0 2.8<br />

y0<br />

xc1<br />

w1<br />

A1<br />

0 ±0<br />

2927.27392<br />

324.18067<br />

9.24783<br />

±1.98029<br />

±4.23319<br />

±0.10323<br />

xc2<br />

w2<br />

3343.37621<br />

226.28622<br />

±3.17441<br />

±6.04623<br />

)<br />

A2 3.32213 ±0.09302<br />

0.030<br />

0.025<br />

0.020<br />

0.015<br />

0.010<br />

0.005<br />

0.000<br />

Baseline: y=[x/11800]^4+0.351<br />

Chi^2 = 2.5969E-6<br />

R^2 = 0.94457<br />

Wavelength / µm<br />

2600 2800 3000 3200 3400 3600<br />

Wavenumber / cm -1<br />

Fig. (6.32) shows the Gaussian deconvolution of the OH bands for glass MOF006<br />

(75TeO2-10Na2O-15ZnF2 mol. %).<br />

40<br />

35<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

0<br />

45<br />

40<br />

35<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

0<br />

Loss / dB.m -1<br />

Loss / dB.m -1

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