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Longwave Pass Filters (IR)

Longwave Pass Filters (IR)

Longwave pass filters (IR) are designed to transmit wavelengths longer than 5% of the "cut-on" values and block the shorter wavelengths. The longwave 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
LWP Filter (IR): 25mm Dia, Cut-On 1000 R01710-00 Graph $463.00
Add to cart
Substrate MaterialGlass
Dimensions25mm Diameter ±0.2mm
Thickness1.0mm-2.3mm ±0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)
Surface Flatness2 Waves Per 25mm
Transmitted Wavefront Error (TWE)n/a
Parallelism7 Arc Minutes
CoatingInfrared Materials
WavelengthSee Cut-On
Blocking< 0.1% T
Laser DamageNot Tested
Operating Temperature-50° C to 100° C
Cut On5% at 1000 ± 25nm
Cut Offn/a
Slope3-5%
TransmissionAverage > 75%
LWP Filter (IR): 25mm Dia, Cut-On 10000 R01746-00 $783.00
Add to cart
Substrate MaterialGermanium
Dimensions25mm Diameter ±0.2mm
Thickness1.0mm-2.3mm ±0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)
Surface Flatness2 Waves Per 25mm
Transmitted Wavefront Error (TWE)n/a
Parallelism7 Arc Minutes
CoatingInfrared Materials
WavelengthSee Cut-On
Blocking< 0.1% T
Laser DamageNot Tested
Operating Temperature-50° C to 100° C
Cut On5% at 10000 ± 350nm
Cut Offn/a
Slope3-5%
TransmissionAverage > 75%
LWP Filter (IR): 25mm Dia, Cut-On 1100 R01712-00 $291.00
Add to cart
Substrate MaterialSilicon
Dimensions25mm Diameter ±0.2mm
Thickness1.0mm-2.3mm ±0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)
Surface Flatness2 Waves Per 25mm
Transmitted Wavefront Error (TWE)n/a
Parallelism7 Arc Minutes
CoatingInfrared Materials
WavelengthSee Cut-On
Blocking< 0.1% T
Laser DamageNot Tested
Operating Temperature-50° C to 100° C
Cut On5% at 1100 ± 30nm
Cut Offn/a
Slope3-5%
TransmissionAverage > 75%
LWP Filter (IR): 25mm Dia, Cut-On 1250 R01714-00 $291.00
Add to cart
Substrate MaterialSilicon
Dimensions25mm Diameter ±0.2mm
Thickness1.0mm-2.3mm ±0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)
Surface Flatness2 Waves Per 25mm
Transmitted Wavefront Error (TWE)n/a
Parallelism7 Arc Minutes
CoatingInfrared Materials
WavelengthSee Cut-On
Blocking< 0.1% T
Laser DamageNot Tested
Operating Temperature-50° C to 100° C
Cut On5% at 1250 ± 30nm
Cut Offn/a
Slope3-5%
TransmissionAverage > 75%
LWP Filter (IR): 25mm Dia, Cut-On 1300 R01716-00 $291.00
Add to cart
Substrate MaterialSilicon
Dimensions25mm Diameter ±0.2mm
Thickness1.0mm-2.3mm ±0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)
Surface Flatness2 Waves Per 25mm
Transmitted Wavefront Error (TWE)n/a
Parallelism7 Arc Minutes
CoatingInfrared Materials
WavelengthSee Cut-On
Blocking< 0.1% T
Laser DamageNot Tested
Operating Temperature-50° C to 100° C
Cut On5% at 1300 ± 30nm
Cut Offn/a
Slope3-5%
TransmissionAverage > 75%
LWP Filter (IR): 25mm Dia, Cut-On 1500 R01718-00 Graph $385.00
Add to cart
Substrate MaterialSilicon
Dimensions25mm Diameter ±0.2mm
Thickness1.0mm-2.3mm ±0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)
Surface Flatness2 Waves Per 25mm
Transmitted Wavefront Error (TWE)n/a
Parallelism7 Arc Minutes
CoatingInfrared Materials
WavelengthSee Cut-On
Blocking< 0.1% T
Laser DamageNot Tested
Operating Temperature-50° C to 100° C
Cut On5% at 1500 ± 30nm
Cut Offn/a
Slope3-5%
TransmissionAverage > 75%
LWP Filter (IR): 25mm Dia, Cut-On 1600 R01720-00 $385.00
Add to cart
Substrate MaterialSilicon
Dimensions25mm Diameter ±0.2mm
Thickness1.0mm-2.3mm ±0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)
Surface Flatness2 Waves Per 25mm
Transmitted Wavefront Error (TWE)n/a
Parallelism7 Arc Minutes
CoatingInfrared Materials
WavelengthSee Cut-On
Blocking< 0.1% T
Laser DamageNot Tested
Operating Temperature-50° C to 100° C
Cut On5% at 1600 ± 30nm
Cut Offn/a
Slope3-5%
TransmissionAverage > 75%
LWP Filter (IR): 25mm Dia, Cut-On 1700 R01722-00 $385.00
Add to cart
Substrate MaterialSilicon
Dimensions25mm Diameter ±0.2mm
Thickness1.0mm-2.3mm ±0.2mm
Bevel45°
Edge FinishGround
Surface Quality (SQ)80-50 Scratch & Dig
Clear Aperture (CA)90%
Angle Of Incidence (AOI)
Surface Flatness2 Waves Per 25mm
Transmitted Wavefront Error (TWE)n/a
Parallelism7 Arc Minutes
CoatingInfrared Materials
WavelengthSee Cut-On
Blocking< 0.1% T
Laser DamageNot Tested
Operating Temperature-50° C to 100° C
Cut On5% at 1700 ± 35nm
Cut Offn/a
Slope3-5%
TransmissionAverage > 75%