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¢º 10.6um Bandpass filter

  Sapphire substrate

  Germanium substrate

  2.4um ~ 14um range

 

 

Inquiry

 

Custom Infrared Bandpass Filters



Bandpass filters isolate specific regions of the spectrum, simultaneously providing high transmission of desired energy, and deep rejection of unwanted energy. Available in wide or narrow bandwidths, they can be tailored to suit your specific requirements.


Andover can design and fabricate custom bandpass filters to suit your particular requirements. Every phase of the process is performed in-house, including thin-film coating design, mechanical design, substrate fabrication and polishing, coating, inspection, and environmental testing.


We can coat a variety of substrate materials, including Germanium, Sapphire, Silicon, Zinc Sulfide, and Zinc Selenide. Contact us for a quotation, whether it is for prototype quantities, or production quantities.


Typical IR Bandpass Filter
10.6 micron bandpass filter

Custom IR Bandpass Filter Specifications
Bandwidth
(% of CW/L)
W/L Range
Transmission
Blocking
Substrate
Part Numbers
>10%
2.4 µm - 5.0 µm
70 - 80%
0.3 to 40 µm
Sapphire
IRFC10-25
5.1 µm - 6.5 µm
70 - 80%
0.3 to 15 µm
Germanium
IRFC12-25
6.6 µm - 8.5 µm
60 - 70%
0.3 to 15 µm
Germanium
IRFC14-25
8.6 µm - 10.3 µm
60 - 70%
0.3 to 15 µm
Germanium
IRFC16-25
10.4 µm - 14.0 µm
50 - 60%
0.3 to 15 µm
Germanium
IRFC18-25
1.6 - 10.0%
2.4 µm - 5.0 µm
70 - 80%
0.3 to 40 µm
Sapphire
IRFC20-25
5.1 µm - 6.5 µm
70 - 80%
0.3 to 15 µm
Germanium
IRFC22-25
6.6 µm - 8.5 µm
60 - 70%
0.3 to 15 µm
Germanium
IRFC24-25
8.6 µm - 10.3 µm
50 - 60%
0.3 to 15 µm
Germanium
IRFC26-25
10.4 µm - 14.0 µm
40 - 60%
0.3 to 15 µm
Germanium
IRFC28-25
1.0 - 1.5%
2.4 µm - 5.0 µm
50 - 80%
0.3 to 40 µm
Sapphire
IRFC30-25
5.1 µm - 6.5 µm
50 - 80%
0.3 to 15 µm
Germanium
IRFC32-25
6.6 µm - 8.5 µm
40 - 70%
0.3 to 15 µm
Germanium
IRFC34-25
8.6 µm - 10.3 µm
40 - 60%
0.3 to 15 µm
Germanium
IRFC36-25
10.4 µm - 14.0 µm
30 - 60%
0.3 to 15 µm
Germanium
IRFC38-25
Custom spectral and physical properties available uopn request


General Specifications
Diameter Tolerance: +0/-.1mm
Minimum Clear Aperture: 21mm
Center W/L tolerance: ¡¾0.05nm
Transmission (Ave): 60 - 80%
Surface Quality: 60/40 per MIL-C-48497A
Coating Quality: 60/40 per MIL-C-48497A
24-hour Humidity: per MIL-C-48497A
Moderate Abrasion: per MIL-C-48497A
Adhesion: per MIL-C-48497A

 

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