IR Filters include Broad Band Pass Infrared Filters and Narrow Band Pass IR Filters. These filters are made from various IR substrates such as silicon, sapphire, IR Quartz, germanium, ZnSe, ZnS, CaF2, etc.
CWL |
HPBW |
Tpeak (%) |
Blocking (Tavg<1%) |
Detected Gas |
2.00±20nm |
44±10nm |
≧80% |
400-3200nm |
CO2 |
2.18±20nm |
41±10nm |
≧80% |
400-3200nm |
HF ref |
2.45±25nm |
72±10nm |
≧75% |
400-20000nm |
HF means |
2.89±20nm |
54±10nm |
≧75% |
400-20000nm |
H2O |
3.55±30nm |
132±20nm |
≧75% |
400-20000nm |
HCl |
4.72±50nm |
90±10nm |
≧75% |
400-11000nm |
CO |
5.25±50nm |
100±10nm |
≧75% |
400-11000nm |
NO |
5.46±50nm |
102±10nm |
≧75% |
400-11000nm |
SO2 ref |
6.25±100nm |
124±10nm |
≧75% |
400-11000nm |
NO2 |
7.40±100nm |
126±10nm |
≧80% |
400-10000nm |
SO2 |
10.6±200nm |
1172±150nm |
≧75% |
400-12000nm |
NH3 |
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