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	-	80%	Ø 25 mm	Contact Supplier	Add to cart to request quote
Product Code Cut-On Wavelength 1650 nm Transmittance 80% Diameter 25 mm Dimensions Ø 25 mm Substrate Silicon Shape Round Supplier Location Vermont, USA See product details More from omega optical
Longpass Filter	1064 nm (Front, Center Wavelength) 1064 nm (Rear, Center Wavelength) 532 nm (Front, Center Wavelength)	-	Ø 12.7 mm (0.5")	Contact Supplier	$ 215.61
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 532 nm, 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 > 99% (0°, 532 nm, Front) < 0.5% (0°, 1064 nm, Front) < 0.1% (0°, 1064 nm, Rear) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6.35 mm (0.25") Parallelism < 5' Substrate UV Fused Silica Shape Round Angle of Incidence 0° 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	725 nm (Center Wavelength)	91% (735 - 1650 nm)	Ø 48 mm	1 weeks	$ 745.00	Only 2 left
Product Code Wavelength Range 725 nm (Center Wavelength) Center Wavelength 725 nm Cut-On Wavelength 725 nm Transmittance 91% (735 - 1650 nm) Diameter 48 mm Dimensions Ø 48 mm Thickness 5 mm Parallelism 1' Shape Round Angle of Incidence 4° Clear Aperture Ø 44 mm (Minimum) Blocking 4 OD (200 - 705 nm) Surface Irregularity < λ/5, 5λ (Flatness) Supplier Location New Hampshire, USA See product details More from Andover
Longpass Filter	700 - 900 nm 710 - 890 nm 532 nm	-	Ø 12.7 mm (0.5")	Contact Supplier	$ 242.15
Product Code Wavelength Range 700 - 900 nm 710 - 890 nm 532 nm Center Wavelength 532 nm 700 - 900 nm 710 - 890 nm Reflection Wavelength 700 - 900 nm 532 nm Coating BBHR (700 - 900 nm) AR/Transmissive V-Coating (532 nm) (Rear) Reflectance > 99.8% (0°, 700 - 900 nm, Front) < 2% (0°, 532 nm, Front) < 0.2% (0°, 532 nm, Rear) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6.35 mm (0.25") Edge Thickness 6.1482 mm Parallelism 5' Substrate Fused Silica Shape Round 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, Multi Wavelength, Narrowband Laser Type Nd:YAG, Ti:Sa Radius of Curvature 100 mm Group Delay Dispersion 0 fs² (710 - 890 nm) Center Thickness 6.1482 mm 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	-	-	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	$ 414.64
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' Substrate UV Fused Silica Shape Rectangular 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
Longpass Filter	950 - 2000 nm (Transmission) 300 - 750 nm (Blocking Range)	> 80% (950 - 2000 nm, Average) < 0.1% (300 - 750 nm, Average)	80 x 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) Dimensions 80 x 80 mm Thickness 2 mm Blocking Wavelength Range 300 - 750 nm Substrate Borofloat Shape Square Angle of Incidence 0° Supplier Location Netherlands See product details More from PHYSIX Photonics
Longpass Filter	1030 nm (Front, Center Wavelength) 1030 nm (Rear, Center Wavelength) 343 nm (Front, Center Wavelength) 515 nm (Front, Center Wavelength) 515 nm (Rear, Center Wavelength)	-	50 x 27 x 1.5 mm	In stock	$ 425.69
Product Code Wavelength Range 1030 nm (Front, Center Wavelength) 1030 nm (Rear, Center Wavelength) 343 nm (Front, Center Wavelength) 515 nm (Front, Center Wavelength) 515 nm (Rear, Center Wavelength) Center Wavelength 1030 nm (Front) 1030 nm (Rear) 343 nm (Front) 515 nm (Front) 515 nm (Rear) Reflection Wavelength 343 nm, 515 nm, 1030 nm Coating AR/Transmissive V-Coating (1030 nm) AR/Transmissive V-Coating (515 nm) Reflective V-Coating (343 nm) AR/Transmissive V-Coating (1030 nm) (Rear) AR/Transmissive V-Coating (515 nm) (Rear) Coating Method Ion Beam Sputtering (Front) Ion Beam Sputtering (Rear) Reflectance > 99.5% (45°, 343 nm, Front) < 1% (45°, 515 nm, Front) < 1% (45°, 1030 nm, Front) < 0.7% (45°, 515 nm, Rear) < 0.7% (45°, 1030 nm, Rear) Dimensions 50 x 27 x 1.5 mm Thickness 1.5 mm Parallelism < 5' Substrate UV Fused Silica Shape Rectangular 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
Longpass Filter	-	> 90% (1316 - 2150 nm)	Ø 25 mm (0.98")	In stock	$ 143.81
Product Code Cut-On Wavelength 1300 nm Transmittance > 90% (1316 - 2150 nm) Diameter 25 mm (0.98") Dimensions Ø 25 mm (0.98") Thickness 3.5 mm Substrate UV Fused Silica Shape Round Surface Quality 40-20 scratch-dig Clear Aperture Ø 21.1 mm (0.83") Optical Density > 5 (200 - 1284 nm) Transmitted Wavefront Error λ/4 (632.8 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
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)	-	60 x 35 x 2 mm	In stock	$ 453.34
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 60 x 35 x 2 mm Thickness 2 mm Parallelism < 5' Substrate UV Fused Silica Shape Rectangular 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
Longpass Filter	1410 - 1800 nm 3000 - 4000 nm 1064 nm	-	Ø 12.7 mm (0.5")	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 1410 - 1800 nm 3000 - 4000 nm 1064 nm Center Wavelength 1064 nm 1410 - 1800 nm 3000 - 4000 nm Reflection Wavelength 1410 - 1800 nm 1064 nm 3000 - 4000 nm Coating BBHR (1410 - 1800 nm) AR/Transmissive V-Coating (1064 nm) (Rear) BBAR (3000 - 4000 nm) (Rear) Reflectance > 99.9% (0°, 1410 - 1800 nm, Front) < 2% (0°, 1064 nm, Front) < 5% (0°, 3000 - 4000 nm, Front) < 0.3% (0°, 1064 nm, Rear) < 2% (0°, 3000 - 4000 nm, Rear) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 3 mm Edge Thickness 3 mm Parallelism 5' Substrate YAG (Undoped, Optical Grade) Shape Round Angle of Incidence 0° Surface Quality 10-5 scratch-dig (Output Face) 5/1x0.063; 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/4 (546.1 nm, Front) Coating Features Broadband, Narrowband Laser Type Nd:YAG, Ti:Sa Radius of Curvature 50 mm Type of Curvature Plano-Concave Center Thickness 3 mm Chamfer 0.2 mm (Rear) 0.2 mm (Front) Chamfer Tolerance ±0.1 mm Supplier Location Germany See product details More from LAYERTEC
Longpass Filter	-	> 95% (400 - 850 nm, Minimum)	Ø 60 mm	In stock	$ 62.00
Product Code Cut-On Wavelength 380 nm Transmission Wavelength 400 - 850 nm Transmittance > 95% (400 - 850 nm, Minimum) Diameter 60 mm (Outer) Dimensions Ø 60 mm Thickness 5.2 mm (Mount) 2 mm, 3 mm (Substrate) 6.5 mm (Mount) Substrate Acrylic Shape Round Clear Aperture 53 mm Filter Thread M58x0.75 Supplier Location New Jersey, USA See product details More from Edmund Optics
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 2 mm Blocking Wavelength Range 280 - 380 nm Substrate Borofloat Shape Square Angle of Incidence 0° Supplier Location Netherlands See product details More from PHYSIX Photonics
Longpass Filter	-	85%	Ø 12.5 mm	Contact Supplier	Add to cart to request quote
Product Code Cut-On Wavelength 7300 nm Transmittance 85% Diameter 12.5 mm Dimensions Ø 12.5 mm Substrate Germanium Shape Round Supplier Location Vermont, USA See product details More from omega optical
Longpass Filter	690 - 890 nm 700 - 880 nm 450 - 550 nm 532 nm	-	Ø 12.7 mm (0.5")	Contact Supplier	$ 210.08
Product Code Wavelength Range 690 - 890 nm 700 - 880 nm 450 - 550 nm 532 nm Center Wavelength 450 - 550 nm 532 nm 690 - 890 nm 700 - 880 nm Reflection Wavelength 690 - 890 nm 532 nm 450 - 550 nm Coating BBHR (690 - 890 nm) BBAR (450 - 550 nm) (Rear) Reflectance > 99.9% (0°, 690 - 890 nm, Front) < 2% (0°, 532 nm, Front) < 0.25% (0°, 450 - 550 nm, Rear) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6.35 mm (0.25") Substrate Fused Silica Shape Round 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 Group Delay Dispersion 0 fs² (700 - 880 nm) Supplier Location Germany See product details More from LAYERTEC
Longpass Filter	-	-	Ø 12.5 mm	Contact Supplier	$ 28.22
Product Code Cut-On Wavelength 510 nm Diameter 12.5 mm Dimensions Ø 12.5 mm Thickness 1.1 mm Substrate Borosilicate Shape Round Surface Quality 60-40 scratch-dig Thickness Tolerance ±0.2 mm Diameter Tolerance +0/-0.2 mm Length Tolerance ±0.25 mm Width Tolerance ±0.25 mm Supplier Location United Kingdom; Rhode Island, USA See product details More from Knight Optical
Longpass Filter	-	> 90% (790.1 - 1008 nm)	Ø 25 mm	2 weeks	$ 796.00
Product Code Transmission Wavelength 790.1 - 1008 nm Transmittance > 90% (790.1 - 1008 nm) Diameter 25 mm Dimensions Ø 25 mm Shape Round Angle of Incidence 0° Surface Quality 60-40 scratch-dig Clear Aperture Ø 22 mm Applications Raman Mount Non-Threaded Mount, 25mm Optical Density 6 (Average) Weight 5 g Supplier Location California, USA See product details More from OptoSigma
Longpass Filter	800 - 2000 nm (Transmission) 400 - 700 nm (Blocking Range)	> 85% (800 - 2000 nm) < 2% (400 - 700 nm, Average)	50 x 50 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 800 - 2000 nm (Transmission) 400 - 700 nm (Blocking Range) Cut-On Wavelength 770 nm (±12 nm) Transmission Wavelength 800 - 2000 nm Coating Dielectric Transmittance > 85% (800 - 2000 nm) < 2% (400 - 700 nm, Average) Dimensions 50 x 50 mm Thickness 2 mm Blocking Wavelength Range 400 - 700 nm Substrate Borofloat Shape Square Angle of Incidence 0° Supplier Location Netherlands See product details More from PHYSIX Photonics
Longpass Filter	532 nm, 1064 nm	-	Ø 12.7 mm (0.5")	In stock	$ 287.48
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) Reflectance > 99.95% (0°, 532 nm, Front) < 0.25% (0°, 1064 nm, Front) < 0.25% (0°, 1064 nm, Rear) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6.35 mm (0.25") Parallelism 5' Substrate Fused Silica Shape Round 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 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 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	920 - 1600 nm	> 85% (1240 - 1600 nm, Average Polarization) > 80% (1240 - 1600 nm, Absolute Polarization)	Ø 12.5 mm	In stock	$ 136.00
Product Code Wavelength Range 920 - 1600 nm Cut-On Wavelength 1200 nm (±24 nm) Reflection Wavelength 920 - 1160 nm Transmission Wavelength 1240 - 1600 nm Coating Hard Coating Reflectance > 97% (920 - 1160 nm, Average Polarization) > 95% (920 - 1160 nm, Absolute Polarization) Transmittance > 85% (1240 - 1600 nm, Average Polarization) > 80% (1240 - 1600 nm, Absolute Polarization) Diameter 12.5 mm Dimensions Ø 12.5 mm Thickness 1.05 mm Substrate Fused Silica Shape Round Angle of Incidence 45° Surface Quality 60-40 scratch-dig Thickness Tolerance ±0.1 mm Diameter Tolerance +0/-0.1 mm Supplier Location New Jersey, USA See product details More from Edmund Optics