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Shortwave Pass Filters (IR)

Shortwave Pass Filters (IR)

Shortwave pass filters (IR) are designed to transmit wavelengths shorter than 5% of the "cut-off" values and block the longer wavelengths. The shortwave pass filters (IR) are optimized for zero degree angle of incidence. The inband transmission is typically above 75% and the average out-of-band blocking is less than 0.1%.

Custom sizes and wavelengths are available upon request.


Click here for a custom quote

Description Product No. Graph Price Qty / Buy / Quote
SWP Filter (IR): 25mm Dia, 1.04µm cut-off R04902-01 Quote
Substrate MaterialBK-7 or equivalent
Dimensions25mm Diameter ±0.2mm
Thickness2mm ± 0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)0° ± 2°
Surface Flatness≤ 2 Waves Per 25mm, pre-coated
Transmitted Wavefront Error (TWE)n/a
Parallelism< 3 Arc Minutes
CoatingDielectric
Wavelength0.45µm - 1.30µm
Blocking1.12µm - 1.30µm, ≤0.1% Blocking (avg)
Laser DamageNot tested
Operating Temperature-50° C to 100° C
Cut OnN/A
Cut Off1.04µm ±3.5%
Slope<5%
Transmission0.45µm - 0.96µm, ≥70% T (avg)
SWP Filter (IR): 25mm Dia, 1.56µm cut-off R04904-01 Quote
Substrate MaterialBK-7 or equivalent
Dimensions25mm Diameter ±0.2mm
Thickness2mm ± 0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)0° ± 2°
Surface Flatness≤ 2 Waves Per 25mm, pre-coated
Transmitted Wavefront Error (TWE)n/a
Parallelism< 3 Arc Minutes
CoatingDielectric
Wavelength0.65µm - 2.00µm
Blocking1.67µm - 2.00µm, ≤0.1% Blocking (avg)
Laser DamageNot tested
Operating Temperature-50° C to 100° C
Cut OnN/A
Cut Off1.56µm ±3.5%
Slope<5%
Transmission0.65µm - 1.45µm, ≥70% T (avg)
SWP Filter (IR): 25mm Dia, 2.3µm cut-off R04906-01 Quote
Substrate MaterialBK-7 or equivalent
Dimensions25mm Diameter ±0.2mm
Thickness2mm ± 0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)0° ± 2°
Surface Flatness≤ 2 Waves Per 25mm, pre-coated
Transmitted Wavefront Error (TWE)n/a
Parallelism< 3 Arc Minutes
CoatingDielectric
Wavelength1.40µm - 6.50µm
Blocking2.47µm - 6.50µm, ≤0.1% Blocking (avg)
Laser DamageNot tested
Operating Temperature-50° C to 100° C
Cut OnN/A
Cut Off2.30µm ±3.5%
Slope<5%
Transmission1.40µm - 2.13µm, ≥70% T (avg)
SWP Filter (IR): 25mm Dia, 3.3µm cut-off R04908-01 Quote
Substrate MaterialSiO2, IR Grade
Dimensions25mm Diameter ±0.2mm
Thickness2mm ± 0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)0° ± 2°
Surface Flatness≤ 2 Waves Per 25mm, pre-coated
Transmitted Wavefront Error (TWE)n/a
Parallelism< 3 Arc Minutes
CoatingDielectric
Wavelength1.90µm - 6.50µm
Blocking3.54µm - 6.50µm, ≤0.1% Blocking (avg)
Laser DamageNot tested
Operating Temperature-50° C to 100° C
Cut OnN/A
Cut Off3.30µm ±3.5%
Slope<5%
Transmission1.90µm - 3.06µm, ≥70% T (avg)
SWP Filter (IR): 25mm Dia, 5.07µm cut-off R04910-01 Graph Quote
Substrate MaterialAl2O3
Dimensions25mm Diameter ±0.2mm
Thickness2mm ± 0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)0° ± 2°
Surface Flatness≤ 2 Waves Per 25mm, pre-coated
Transmitted Wavefront Error (TWE)n/a
Parallelism< 3 Arc Minutes
CoatingDielectric
Wavelength2.66µm - 12.00µm
Blocking5.43µm - 12.00µm, ≤0.1% Blocking (avg)
Laser DamageNot tested
Operating Temperature-50° C to 100° C
Cut OnN/A
Cut Off5.07µm ±3.5%
Slope<5%
Transmission2.66µm - 4.71µm, ≥70% T (avg)
SWP Filter (IR): 25mm Dia, 7.75µm cut-off R04912-01 Quote
Substrate MaterialZnS
Dimensions25mm Diameter ±0.2mm
Thickness2mm ± 0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)0° ± 2°
Surface Flatness≤ 2 Waves Per 25mm, pre-coated
Transmitted Wavefront Error (TWE)n/a
Parallelism< 3 Arc Minutes
CoatingDielectric
Wavelength3.40µm - 11.00µm
Blocking8.30µm - 11.00µm, ≤0.1% Blocking (avg)
Laser DamageNot tested
Operating Temperature-50° C to 100° C
Cut OnN/A
Cut Off7.75µm ±3.5%
Slope<5%
Transmission3.40µm - 7.20µm, ≥70% T (avg)
SWP Filter (IR): 25mm Dia, 10.05µm cut-off R04914-01 Quote
Substrate MaterialZnS
Dimensions25mm Diameter ±0.2mm
Thickness3mm ± 0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)0° ± 2°
Surface Flatness≤ 2 Waves Per 25mm, pre-coated
Transmitted Wavefront Error (TWE)n/a
Parallelism< 3 Arc Minutes
CoatingDielectric
Wavelength4.50µm - 21.00µm
Blocking10.76µm - 21.00µm, ≤0.1% Blocking (avg)
Laser DamageNot tested
Operating Temperature-50° C to 100° C
Cut OnN/A
Cut Off10.05µm ±3.5%
Slope<5%
Transmission4.50µm - 9.34µm, ≥70% T (avg)