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Infrared Optical Material - ZnS

Basic Properties:
Specification Standard CVD ZnS Multi-spectrum CVD ZnS
Transmission Range (um) 0.6-12.0 0.35-12.0
Refractive Index@10um 2.2002 2.2008
Temperature Coefficient of Refractive Index@10.6um 41 x 10-6/oC 54 x 10-6/oC
Bulk Absorption Coefficient@10um / cm 0.096 0.02
Melting Point, oC 1830 1830
Hardness (Knoop), Kg/mm2 210-230 160
Density, g/cm3 4.09 4.09
Rupture Modulus, Mpa 103.4 68
Young's Modulus, Gpa 74.5 74.5
Fracture Toughness Mpam-1/2 1.0 0.8
Wavelength
(µm)
Index Wavelength
(µm)
Index Wavelength
(µm)
Index Wavelength
(µm)
Index
0.42 2.516 1.0 2.292 7.0 2.232 13.0 2.152
0.46 2.458 1.4 2.275 7.4 2.228 13.4 2.143
0.50 2.419 1.8 2.267 7.8 2.225 13.8 2.135
0.54 2.391 2.2 2.263 8.2 2.221 14.2 2.126
0.58 2.371 2.6 2.260 8.6 2.217 14.6 2.116
0.62 2.355 3.0 2.257 9.0 2.212 15.0 2.106
0.66 2.342 3.4 2.255 9.4 2.208 15.4 2.095
0.70 2.332 3.8 2.253 9.8 2.203 15.8 2.084
0.74 2.323 4.2 2.251 10.2 2.198 16.2 2.072
0.78 2.316 4.6 2.248 10.6 2.192 16.6 2.059
0.82 2.310 5.0 2.246 11.0 2.186 17.0 2.045
0.86 2.305 5.4 2.244 11.4 2.180 17.4 2.030
0.90 2.301 5.8 2.241 11.8 2.173 17.8 2.015
0.94 2.297 6.2 2.238 12.2 2.167 18.2 1.998
0.98 2.294 6.6 2.235 12.6 2.159    

Infrared Optical Material Infrared Optical Material