Page 98 - Chalcogenide Glasses for Infrared Optics

1.0
TI 0.012 cm –1
NRL 0.01 ± 0.005 cm –1
C.U. 0.01 – 0.007 cm –1

Production cast
0.1
β (cm –1 )

0.01

0.001
2 4 6 8 10 12 14 16
Wavelength (µm)

FIGURE 3.4 TI 1173 absorption as a function of wavelength comparing
standard production glass to glass made with reactant purifi cation.

0.06

0.05
β (cm –1 ) @ 10.6 µm (laser calorimeter) 0.04

0.03

0.02

0.01

0
0 1 2 3 4 5 6
[Si] ppm
FIGURE 3.5 Absorption at 10.6 µm in TI 1173 and TI 20 as a function of
silicon content.

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