IR Filters For Gas Analysis

Gas analysis applications
Spectrogon manufactures a standard selection of infrared filters designed for measuring various gases, such as CO, CO2, and SO2.

Custom sizing
Dicing or turning down (of the diameter):
Please refer to our dicing prices page.

 

 

 

The table below is a product list and does not indicate stock quantity. Please contact the sales department for stock info, or if you don’t find a suitable filter for your application.

Click on the description to see spectral characteristics.

Description CWL CWL +/- tol HW HW +/- tol T (%) Gas Substrate Blocking (nm)
BP-3050-100 nm 3050 ± 30 100 ± 20 70 C₂H₂ Sapphire 30 000
NB-3275-080 nm 3275 ± 20 80 ± 20 70 HC Sapphire 30 000
NB-3355-040 nm 3355 ± 20 40 ± 10 70 C₂H₆ Sapphire 30 000
BP-3400-120 nm 3400 ± 30 120 ± 20 70 HC Sapphire 30 000
BP-3400-120 nm Si 3400 ± 30 120 ± 20 70 HC Silicon 11 000
NB-3910-070 nm 3910 ± 30 70 ± 15 70 Ref Silicon 11 000
BP-4265-200 nm 4265 ± 30 180 ± 20 70 CO₂ Sapphire 30 000
NB-4265-120 nm Si 4265 ± 30 120 ± 20 70 CO₂ Silicon 11 000
NB-4525-083 nm 4525 ± 20 83 ± 6 70 N₂O Sapphire 30 000
NB-4525-083 nm Si 4525 ± 20 83 ± 6 70 N₂O Silicon 11 000
BP-4650-180 nm 4650 ± 40 180 ± 20 70 CO Sapphire 30 000
BP-4650-180 nm Si 4650 ± 40 180 ± 20 70 CO Silicon 11 000
NB-4720-090 nm 4720 ± 20 90 ± 10 70 CO Sapphire 30 000
NB-4720-090 nm Si 4720 ± 20 90 ± 10 70 CO Silicon 11 000
NB-5680-165 nm 5680 ± 40 165 ± 30 60 H₂O Sapphire 30 000
NB-5680-165 nm Si 5680 ± 40 165 ± 30 70 H₂O Silicon 11 000
NB-6250-100 nm 6250 ± 40 100 ± 30 70 NO₂ Silicon 11 000
BP-6580-200 nm 6580 ± 40 200 ± 20 70 H₂O Silicon 14 000
NB-7300-180 nm 7300 ± 50 180 ± 20 70 SO₂ Silicon 11 000
BP-7675-242 nm 7675 ± 50 242 ± 30 70 CH₄ Silicon 12 000
BP-10540-690 nm 10540 ± 100 690 ± 100 70 SF₆ Ge 16 500
BP-10540-690 nm Si 10540 ± 100 690 ± 100 60 SF₆ Silicon 16 500

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