Dielectric Filters

Optical filters designed with dielectric thin-film coatings to restrict transmission and/or reflection to specific wavelength ranges with high contrast. Learn More

Product	Wavelength Range	Transmittance	Dimensions	Availability	Price (USD)	Add to Cart
Longpass Filter	-	90% (Average)	Ø 25 mm	In stock	$ 386.83
Product Code Transmittance 90% (Average) Diameter 25 mm Dimensions Ø 25 mm Thickness 0.5 mm Shape Round Angle of Incidence 0° Surface Quality 60-40 scratch-dig Supplier Location United Kingdom See product details More from Vortex
Longpass Filter	-	> 90% (930 - 1100 nm, Minimum)	Ø 42.5 mm	In stock	$ 55.00
Product Code Cut-On Wavelength 900 nm Transmission Wavelength 930 - 1100 nm Coating Hard Coating Transmittance > 90% (930 - 1100 nm, Minimum) Diameter 42.5 mm (Outer) Dimensions Ø 42.5 mm Thickness 5.2 mm (Mount) 2 mm, 3 mm (Substrate) 7 mm (Mount) Shape Round Substrate Acrylic Clear Aperture 35.5 mm Filter Thread M40.5x0.50 Supplier Location New Jersey, USA See product details More from Edmund Optics
Longpass Filter	6300 - 12000 nm (Transmission) 200 - 6000 nm (Blocking Range)	> 85% (6300 - 12000 nm)	Ø 50 mm	In stock	$ 655.00
Product Code Wavelength Range 6300 - 12000 nm (Transmission) 200 - 6000 nm (Blocking Range) Cut-On Wavelength 6000 nm (5%) Transmission Wavelength 6300 - 12000 nm Transmittance > 85% (6300 - 12000 nm) Diameter 50 mm Dimensions Ø 50 mm Thickness 1 mm Parallelism < 10' Blocking Wavelength Range 200 - 6000 nm Shape Round Substrate Germanium Surface Quality 80-50 scratch-dig Clear Aperture 45 mm Thickness Tolerance ±0.2 mm Diameter Tolerance +0/-0.1 mm Surface Irregularity 3 - 5λ (PV, Flatness) Optical Density > 3 (Average) Operating Temperature -62 to 71 °C Supplier Location New Jersey, USA See product details More from Edmund Optics
Longpass Filter	-	90%	Ø 25 mm	1 weeks	$ 230.00	Only 36 left
Product Code Cut-On Wavelength 4800 nm Transmittance 90% Diameter 25 mm Dimensions Ø 25 mm Thickness 1 mm Parallelism 3 - 5' Blocking Wavelength Range 10 - 4500 nm Shape Round Substrate Germanium Angle of Incidence 0° Surface Quality 80-50 scratch-dig Blocking 3 OD (0.1 - 4500 nm) Supplier Location New Hampshire, USA See product details More from Andover
Longpass Filter	420 - 780 nm (Transmission) 280 - 380 nm (Blocking Range)	> 85% (420 - 780 nm, Average) < 1% (280 - 380 nm)	Ø 25 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 420 - 780 nm (Transmission) 280 - 380 nm (Blocking Range) Cut-On Wavelength 405 nm (±8 nm) Transmission Wavelength 420 - 780 nm Coating Dielectric Transmittance > 85% (420 - 780 nm, Average) < 1% (280 - 380 nm) Diameter 25 mm Dimensions Ø 25 mm Thickness 2 mm Blocking Wavelength Range 280 - 380 nm Shape Round Substrate Borofloat Angle of Incidence 0° Supplier Location Netherlands See product details More from PHYSIX Photonics
Longpass Filter	532 nm, 1064 nm	-	Ø 25.4 mm (1")	Contact Supplier	$ 413.18
Product Code Wavelength Range 532 nm, 1064 nm Center Wavelength 1064 nm, 532 nm Reflection Wavelength 532 nm, 1064 nm Coating Reflective V-Coating (532 nm) AR/Transmissive V-Coating (1064 nm) (Rear) AR/Transmissive V-Coating (532 nm) (Rear) Reflectance > 99.9% (0 - 10°, 532 nm, Front) < 0.5% (0 - 10°, 1064 nm, Front) < 5% (0 - 10°, 532 nm, Rear) < 0.25% (0 - 10°, 1064 nm, Rear) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6.35 mm (0.25") Parallelism 19.998'' Shape Round Substrate Fused Silica Angle of Incidence 0 - 10° Surface Quality 10-5 scratch-dig (Output Face) 5/1x0.04; L1x0.004 (Front), 5/1x0.04; L1x0.004 (Rear) (ISO-7) Thickness Tolerance ±0.1 mm Applications Pump Mirror Diameter Tolerance +0.05/-0.05 mm Surface Irregularity λ/10 (546.1 nm, Rear) λ/10 (546.1 nm, Front) Coating Features Multi Wavelength Narrowband Laser Type Nd:YAG Supplier Location Germany See product details More from LAYERTEC
Longpass Filter	420 - 780 nm (Transmission) 280 - 380 nm (Blocking Range)	> 85% (420 - 780 nm, Average) < 1% (280 - 380 nm)	50 x 50 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 420 - 780 nm (Transmission) 280 - 380 nm (Blocking Range) Cut-On Wavelength 405 nm (±8 nm) Transmission Wavelength 420 - 780 nm Coating Dielectric Transmittance > 85% (420 - 780 nm, Average) < 1% (280 - 380 nm) Dimensions 50 x 50 mm Thickness 1.75 mm Blocking Wavelength Range 280 - 380 nm Shape Square Substrate Borofloat Angle of Incidence 0° Supplier Location Netherlands See product details More from PHYSIX Photonics
Longpass Filter	914 nm, 457 nm, 808 nm	-	Ø 12.7 mm (0.5")	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 914 nm, 457 nm, 808 nm Center Wavelength 457 nm, 808 nm, 914 nm Reflection Wavelength 914 nm, 457 nm, 808 nm Coating Reflective V-Coating (914 nm) AR/Transmissive V-Coating (457 nm) (Rear) AR/Transmissive V-Coating (808 nm) (Rear) Reflectance > 99.9% (0°, 914 nm, Front) < 5% (0°, 457 nm, Front) < 5% (0°, 808 nm, Front) < 0.5% (0°, 457 nm, Rear) < 0.5% (0°, 808 nm, Rear) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6.35 mm (0.25") Edge Thickness 6.35 mm (0.25") Parallelism 5' Shape Round Substrate Fused Silica Angle of Incidence 0° Surface Quality 10-5 scratch-dig (Output Face) 5/1x0.025; L1x0.004 (Front), 5/1x0.025; L1x0.004 (Rear) (ISO-7) Thickness Tolerance ±0.1 mm Applications Pump Mirror Diameter Tolerance +0.05/-0.05 mm Surface Irregularity λ/10 (546.1 nm, Rear) λ/10 (546.1 nm, Front) Coating Features Multi Wavelength Narrowband Laser Type Nd:YAG Radius of Curvature 150 mm Type of Curvature Plano-Concave Chamfer 0.3 mm (Rear) 0.3 mm (Front) Chamfer Tolerance ±0.1 mm Supplier Location Germany See product details More from LAYERTEC
Longpass Filter	-	-	Ø 22 mm	Contact Supplier	Add to cart to request quote
Product Code Cut-On Wavelength 565 nm (±3 nm) Diameter 22 mm Dimensions Ø 22 mm Thickness 3.5 mm Shape Round Angle of Incidence 0 - 15° Blocking > 4 OD (550 nm) Supplier Location Vermont, USA See product details More from omega optical
Longpass Filter	532 nm (Transmission) 1064 nm (Transmission) 532 nm (Reflection) 1064 nm (Reflection)	< 0.3% (45°, 355 nm, Front) > 97% (45°, 532 nm, Front) > 98% (45°, 1064 nm, Front)	Ø 25 mm	In stock	$ 399.16
Product Code Wavelength Range 532 nm (Transmission) 1064 nm (Transmission) 532 nm (Reflection) 1064 nm (Reflection) Center Wavelength 1064 nm (Front) 1064 nm (Rear) 355 nm (Front) 532 nm (Front) 532 nm (Rear) Reflection Wavelength 532 nm, 1064 nm Transmission Wavelength 532 nm, 1064 nm Coating AR/Transmissive V-Coating (1064 nm) AR/Transmissive V-Coating (532 nm) Reflective V-Coating (355 nm) AR/Transmissive V-Coating (1064 nm) (Rear) AR/Transmissive V-Coating (532 nm) (Rear) Coating Method Electron Beam Evaporation (Rear) Magnetron Sputtering (Front) Reflectance < 1% (45°, 532 nm, Rear) < 0.75% (45°, 1064 nm, Rear) Transmittance < 0.3% (45°, 355 nm, Front) > 97% (45°, 532 nm, Front) > 98% (45°, 1064 nm, Front) Diameter 25 mm Dimensions Ø 25 mm Thickness 6.35 mm (0.25") Parallelism < 5' Shape Round Substrate UV Fused Silica Angle of Incidence 45° Surface Quality 10-5 scratch-dig 5/3x0.025 (ISO-7) Diameter Tolerance +0/-0.1 mm Surface Irregularity λ/10 (546 nm, Flatness) Coating Features High Power, Multi Wavelength, Narrowband Supplier Location Germany See product details More from LASEROPTIK
Longpass Filter	730 - 1200 nm (Transmission) 300 - 650 nm (Blocking Range)	> 85% (730 - 1200 nm, Average) < 1% (300 - 650 nm, Average)	50 x 50 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 730 - 1200 nm (Transmission) 300 - 650 nm (Blocking Range) Cut-On Wavelength 700 nm (±10 nm) Transmission Wavelength 730 - 1200 nm Coating Dielectric Transmittance > 85% (730 - 1200 nm, Average) < 1% (300 - 650 nm, Average) Dimensions 50 x 50 mm Thickness 1.1 mm Blocking Wavelength Range 300 - 650 nm Shape Square Substrate Borofloat Angle of Incidence 0° Supplier Location Netherlands See product details More from PHYSIX Photonics
Longpass Filter	1064 nm (Front, Center Wavelength) 1064 nm (Rear, Center Wavelength) 532 nm (Front, Center Wavelength)	> 99.8% (45°, 532 nm, Front) (p-pol) < 1% (45°, 1064 nm, Front) (p-pol) > 99.8% (45°, 532 nm, Front) (s-pol) < 1% (45°, 1064 nm, Front) (s-pol)	Ø 25 mm	In stock	$ 215.76
Product Code Wavelength Range 1064 nm (Front, Center Wavelength) 1064 nm (Rear, Center Wavelength) 532 nm (Front, Center Wavelength) Center Wavelength 1064 nm (Front) 1064 nm (Rear) 532 nm (Front) Reflection Wavelength 1064 nm Coating AR/Transmissive V-Coating (1064 nm) Reflective V-Coating (532 nm) AR/Transmissive V-Coating (1064 nm) (Rear) Coating Method Electron Beam Evaporation (Front) Electron Beam Evaporation (Rear) Reflectance < 0.1% (45°, 1064 nm, Rear) > 99.8% (45°, 532 nm, Front) (s-pol) < 1% (45°, 1064 nm, Front) (s-pol) > 99.8% (45°, 532 nm, Front) (p-pol) < 1% (45°, 1064 nm, Front) (p-pol) Transmittance > 99.8% (45°, 532 nm, Front) (p-pol) < 1% (45°, 1064 nm, Front) (p-pol) > 99.8% (45°, 532 nm, Front) (s-pol) < 1% (45°, 1064 nm, Front) (s-pol) Diameter 25 mm Dimensions Ø 25 mm Thickness 6.35 mm (0.25") Parallelism < 5' Shape Round Substrate UV Fused Silica Angle of Incidence 45° Surface Quality 10-5 scratch-dig 5/3x0.025 (ISO-7) Diameter Tolerance +0/-0.1 mm Surface Irregularity λ/10 (546 nm, Flatness) Coating Features Multi Wavelength Narrowband Supplier Location Germany See product details More from LASEROPTIK
Longpass Filter	625 - 800 nm (Transmission) 300 - 550 nm (Blocking Range)	> 85% (625 - 800 nm, Average) < 1% (300 - 550 nm, Average)	50 x 50 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 625 - 800 nm (Transmission) 300 - 550 nm (Blocking Range) Cut-On Wavelength 600 nm (±10 nm) Transmission Wavelength 625 - 800 nm Coating Dielectric Transmittance > 85% (625 - 800 nm, Average) < 1% (300 - 550 nm, Average) Dimensions 50 x 50 mm Thickness 1.1 mm Blocking Wavelength Range 300 - 550 nm Shape Square Substrate Borofloat Angle of Incidence 0° Supplier Location Netherlands See product details More from PHYSIX Photonics
Longpass Filter	950 - 2000 nm (Transmission) 300 - 750 nm (Blocking Range)	> 80% (950 - 2000 nm, Average) < 0.1% (300 - 750 nm, Average)	Ø 80 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 950 - 2000 nm (Transmission) 300 - 750 nm (Blocking Range) Cut-On Wavelength 860 nm (±15 nm) Transmission Wavelength 950 - 2000 nm Coating Dielectric Transmittance > 80% (950 - 2000 nm, Average) < 0.1% (300 - 750 nm, Average) Diameter 80 mm Dimensions Ø 80 mm Thickness 1.1 mm Blocking Wavelength Range 300 - 750 nm Shape Round Substrate Borofloat Angle of Incidence 0° Supplier Location Netherlands See product details More from PHYSIX Photonics
Longpass Filter	-	> 90% (880 - 1100 nm, Minimum)	Ø 75 mm	In stock	$ 96.00
Product Code Cut-On Wavelength 850 nm Transmission Wavelength 880 - 1100 nm Coating Hard Coating Transmittance > 90% (880 - 1100 nm, Minimum) Diameter 75 mm (Outer) Dimensions Ø 75 mm Thickness 6 mm (Mount) 2 mm (Substrate) 8.3 mm (Mount) Shape Round Substrate Acrylic Clear Aperture 67.5 mm Filter Thread M72x0.75 Supplier Location New Jersey, USA See product details More from Edmund Optics
Longpass Filter	-	95.4939% (530 - 900 nm)	Ø 12.7 mm (0.5")	In stock	$ 175.00
Product Code Cut-On Wavelength 530 nm Transmission Wavelength 530 - 900 nm Transmittance 95.4939% (530 - 900 nm) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Shape Round Applications Fluorescence Blocking 5.5 OD (300 - 511 nm) Mount Non-Threaded Mount, 12.7 mm Supplier Location Vermont, USA Selected Product Option 12.7mmR R=Mounted in Ring See product details More from Chroma
Longpass Filter	360 - 435 nm 700 - 950 nm 680 - 950 nm	2% (0°, 700 - 950 nm, Front)	Ø 12.7 mm (0.5")	Contact Supplier	$ 236.26
Product Code Wavelength Range 360 - 435 nm 700 - 950 nm 680 - 950 nm Center Wavelength 360 - 435 nm 680 - 950 nm 700 - 950 nm Reflection Wavelength 360 - 435 nm 680 - 950 nm Transmission Wavelength 700 - 950 nm Coating BBAR (700 - 950 nm) BBHR (360 - 435 nm) BBAR (680 - 950 nm) (Rear) Reflectance > 99.9% (0°, 360 - 435 nm, Front) < 0.25% (0°, 680 - 950 nm, Rear) Transmittance 2% (0°, 700 - 950 nm, Front) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6.35 mm (0.25") Parallelism 5' Shape Round Substrate Fused Silica Angle of Incidence 0° Surface Quality 10-5 scratch-dig (Output Face) 5/1x0.025; L1x0.004 (Front), 5/1x0.025; L1x0.004 (Rear) (ISO-7) Thickness Tolerance ±0.1 mm Applications Pump Mirror Diameter Tolerance +0.05/-0.05 mm Surface Irregularity λ/10 (546.1 nm, Rear) λ/10 (546.1 nm, Front) Coating Features Broadband Laser Type Ti:Sa Chamfer 0.3 mm (Rear) 0.3 mm (Front) Chamfer Tolerance ±0.1 mm Supplier Location Germany See product details More from LAYERTEC
Longpass Filter	1064 nm (Front, Center Wavelength) 1064 nm (Rear, Center Wavelength) 355 nm (Front, Center Wavelength) 532 nm (Front, Center Wavelength) 532 nm (Rear, Center Wavelength)	-	Ø 25 mm	In stock	$ 377.58
Product Code Wavelength Range 1064 nm (Front, Center Wavelength) 1064 nm (Rear, Center Wavelength) 355 nm (Front, Center Wavelength) 532 nm (Front, Center Wavelength) 532 nm (Rear, Center Wavelength) Center Wavelength 1064 nm (Front) 1064 nm (Rear) 355 nm (Front) 532 nm (Front) 532 nm (Rear) Reflection Wavelength 355 nm, 532 nm, 1064 nm Coating AR/Transmissive V-Coating (1064 nm) AR/Transmissive V-Coating (532 nm) Reflective V-Coating (355 nm) AR/Transmissive V-Coating (1064 nm) (Rear) AR/Transmissive V-Coating (532 nm) (Rear) Coating Method Ion Beam Sputtering (Front) Ion Beam Sputtering (Rear) Reflectance > 99.5% (45°, 355 nm, Front) < 1% (45°, 532 nm, Front) < 1% (45°, 1064 nm, Front) < 0.7% (45°, 532 nm, Rear) < 0.7% (45°, 1064 nm, Rear) Diameter 25 mm Dimensions Ø 25 mm Thickness 6.35 mm (0.25") Parallelism < 5' Shape Round Substrate UV Fused Silica Angle of Incidence 45° Surface Quality 10-5 scratch-dig 5/3x0.025 (ISO-7) Diameter Tolerance +0/-0.1 mm Surface Irregularity λ/10 (546 nm, Flatness) Coating Features Multi Wavelength Narrowband Supplier Location Germany See product details More from LASEROPTIK
Longpass Filter	-	-	14.7 x 10.9 mm	Contact Supplier	Add to cart to request quote
Product Code Cut-On Wavelength 790 nm Dimensions 14.7 x 10.9 mm Thickness 1 mm Shape Rectangular Angle of Incidence 0 - 15° Blocking > 5 OD (750 nm) Length 10.9 mm Width 14.7 mm (±0.1) Supplier Location Vermont, USA See product details More from omega optical
Longpass Filter	1064 nm (Front, Center Wavelength) 1064 nm (Rear, Center Wavelength) 355 nm (Front, Center Wavelength) 532 nm (Front, Center Wavelength) 532 nm (Rear, Center Wavelength)	-	50 x 27 x 1.5 mm	In stock	$ 404.55
Product Code Wavelength Range 1064 nm (Front, Center Wavelength) 1064 nm (Rear, Center Wavelength) 355 nm (Front, Center Wavelength) 532 nm (Front, Center Wavelength) 532 nm (Rear, Center Wavelength) Center Wavelength 1064 nm (Front) 1064 nm (Rear) 355 nm (Front) 532 nm (Front) 532 nm (Rear) Reflection Wavelength 355 nm, 532 nm, 1064 nm Coating AR/Transmissive V-Coating (1064 nm) AR/Transmissive V-Coating (532 nm) Reflective V-Coating (355 nm) AR/Transmissive V-Coating (1064 nm) (Rear) AR/Transmissive V-Coating (532 nm) (Rear) Coating Method Ion Beam Sputtering (Front) Ion Beam Sputtering (Rear) Reflectance > 99.5% (45°, 355 nm, Front) < 1% (45°, 532 nm, Front) < 1% (45°, 1064 nm, Front) < 0.7% (45°, 532 nm, Rear) < 0.7% (45°, 1064 nm, Rear) Dimensions 50 x 27 x 1.5 mm Thickness 1.5 mm Parallelism < 5' Shape Rectangular Substrate UV Fused Silica Angle of Incidence 45° Surface Quality 10-5 scratch-dig 5/3x0.040 (ISO-7) Surface Irregularity λ/5 (546 nm, Flatness) Coating Features Multi Wavelength Narrowband Supplier Location Germany See product details More from LASEROPTIK