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 IR & THz Long Pass Filters
 
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Parameter
Description
General
Diameter
25.4 mm (1 in) or 19 mm (0.75 in) standard (up to 102 mm [4 in] available)
Thickness
0.625 mm ±0.125 mm (0.024 in ±0.005 in)
Filter type
Long-pass scattering
Blocking
Optical density >2 for whole blocking range
4 µm to less than 20 µm
Transmission
50% minimum
Rejection edge width (defined from 20% to 80% of maximum transmission)
50% of center wavelength minimum
Rejection edge position
±10% of center wavelength
Rejection band
Blocking down to 100 nm
20 µm to 125 µm
Transmission
60% or better
Rejection edge width (defined from 20% to 80% of maximum transmission)
25% of center wavelength or better
Rejection edge position
±10% of center wavelength
Rejection band
Blocking down to 100 nm
     

Diameter: 25.4 mm +0/-0.2 mm

Blocking: Average <0.2% below passband through                FUV

 
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   Tel: (614) 891-2243 × 201
   email: irfilters@lakeshore.com
 
 
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