C120/sol-gel glass (after 15 days drying)

λ_a (nm)

OD

No. Density per cm³

6.51 × 10¹⁶

1.77 × 10¹⁷

3.45 × 10¹⁸

I

Method I

354

311

278

269

0.41

0.60

0.63

0.65

0.68

0.99

1.00

1.08

1.95

2.40

2.50

2.65

No. Density per cm³

7.45 × 10¹⁶

4.36 × 10¹⁷

2.54 × 10¹⁸

I

Method II

355

311

278

269

0.62

0.83

1.22

1.29

0.99

1.52

2.28

2.58

1.81

2.41

2.91

2.98

No. Density per cm³

1.48 × 10¹⁵

2.13 × 10¹⁶

3.21 × 10¹⁷

I Method III

350

311

278

269

0.24

0.04

0.05

0.06

2.21

0.40

0.55

0.62

3.00

0.85

1.09

1.25