Plate Beamsplitters

Optical components, so called optical separators, with flat and parallel surfaces, designed for splitting incident light into two beams with different or similar wavelengths.

Product	Split Ratio (R:T)	Wavelength Range	Thickness	Availability	Price (USD)
Plate Beamsplitter	-	-	-	In stock	$ 95.63
Product Code Dimensions 50.8 x 25.4 mm (2 x 1") Surface Irregularity λ/4 (632 nm, Flatness) Shape Rectangular Surface Quality 10-5 scratch-dig Clear Aperture 45.72 x 22.86 mm (1.8 x 0.9") Wedge 5° Wedge Tolerance ±3' Supplier Location New Jersey, USA See product details More from Thorlabs
Plate Beamsplitter	40:60	420 - 700 nm	3 mm	1 weeks	$ 296.00
Product Code Wavelength Range 420 - 700 nm Center Wavelength 420 - 700 nm Dimensions 50 x 50 mm Thickness 3 mm Parallelism 30'' Split Ratio (R:T) 40:60 Surface Irregularity λ/4 (Flatness) Substrate Quartz Shape Square Clear Aperture 45 mm (Minimum) Supplier Location New Hampshire, USA See product details More from Andover
Plate Beamsplitter	30:70	200 - 400 nm	3 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 200 - 400 nm Thickness 3 mm Parallelism 1' Split Ratio (R:T) 30:70 Surface Irregularity λ (633 nm, over 25 mm, Flatness) Substrate Synthetic Fused Silica Surface Quality 60-40 scratch-dig Clear Aperture 31.8 x 45 mm (45°) Angle of Incidence 45° Thickness Tolerance ±0.2 mm Supplier Location Netherlands See product details More from PHYSIX Photonics
Plate Beamsplitter	50:50	400 - 700 nm	1 mm	In stock	$ 50.00
Product Code Wavelength Range 400 - 700 nm Diameter 12.5 mm Dimensions Ø 12.5 mm Thickness 1 mm Split Ratio (R:T) 50:50 Surface Irregularity 4 - 6λ (Flatness) Substrate Float Glass Shape Round Surface Quality 80-50 scratch-dig Supplier Location New Jersey, USA See product details More from Edmund Optics
Plate Beamsplitter	30:70	400 - 700 nm	3 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 400 - 700 nm Coating Magnesium Fluoride Dimensions 127 x 178 mm (±0.38 mm) Thickness 3 mm Split Ratio (R:T) 30:70 Surface Irregularity 4 - 6λ (Flatness) Substrate Float Glass Shape Rectangular Angle of Incidence 45° Quality 80-50 Supplier Location Vermont, USA See product details More from omega optical
Plate Beamsplitter	20:80	450 - 700 nm (Center Wavelength)	2.5 mm	12 weeks	$ 133.00
Product Code Wavelength Range 450 - 700 nm (Center Wavelength) Center Wavelength 450 - 700 nm Reflectance 20% Transmittance 80% Dimensions 20 x 30 mm Thickness 2.5 mm Split Ratio (R:T) 20:80 Surface Irregularity λ, 2λ (Flatness) Substrate N-BK7 Shape Rectangular Clear Aperture 28 x 18 mm Weight 4 g Center Thickness 2.5 mm Supplier Location Pennsylvania, USA See product details More from Excelitas
Plate Beamsplitter	50:50	532 nm (Front, Center Wavelength) 532 nm (Rear, Center Wavelength)	6.35 mm (0.25")	In stock	$ 172.61
Product Code Wavelength Range 532 nm (Front, Center Wavelength) 532 nm (Rear, Center Wavelength) Center Wavelength 532 nm (Front) 532 nm (Rear) Reflection Wavelength 532 nm Coating Reflective V-Coating (532 nm) AR/Transmissive V-Coating (532 nm) (Rear) Coating Method Electron Beam Evaporation (Front) Electron Beam Evaporation (Rear) Reflectance 50% (45°, 532 nm, Front) < 0.6% (45°, 532 nm, Rear) Diameter 25 mm Dimensions Ø 25 mm Thickness 6.35 mm (0.25") Parallelism < 5' Split Ratio (R:T) 50:50 Surface Irregularity λ/10 (546 nm, Flatness) Substrate UV Fused Silica Shape Round Surface Quality 10-5 scratch-dig 5/3x0.025 (ISO-7) Angle of Incidence 45° Diameter Tolerance +0/-0.1 mm Coating Features Multi Wavelength Narrowband Reflectance Tolerance ±3% Supplier Location Germany See product details More from LASEROPTIK
Plate Beamsplitter	30:70	750 - 850 nm	3 mm	4 - 5 days	$ 234.00
Product Code Wavelength Range 750 - 850 nm Center Wavelength 750 - 850 nm Reflectance 30% Transmittance 70% Dimensions Ø 25.4 x 3 mm Thickness 3 mm Parallelism 30'' Split Ratio (R:T) 30:70 Surface Irregularity λ/10 (633 nm, Flatness) Substrate UV Fused Silica Shape Round Surface Quality 20-10 scratch-dig (S1) 20-10 scratch-dig (S2) Clear Aperture 21.59 x 2.55 mm Angle of Incidence 45° (±3°) Diameter Tolerance +0/-0.12 mm Applications Ultrafast Laser Optics Damage Threshold Pulsed > 0.05 J/cm² (50 fs, 800 nm) Back Side Reflectance < 0.5% Chamfer 0.3 mm (45°) Transmittance Tolerance ±5% Reflectance Tolerance ±5% Supplier Location Lithuania See product details More from EKSMA Optics
Longpass Dichroic Beamsplitter	-	604 - 1000 nm (Transmission) 450 - 597 nm (Reflection)	2 mm	In stock	$ 450.00
Product Code Wavelength Range 604 - 1000 nm (Transmission) 450 - 597 nm (Reflection) Transmission Wavelength 604 - 1000 nm Reflection Wavelength 450 - 597 nm Cut-On Wavelength 604 nm Reflectance 99.87504% (450 - 597 nm) Transmittance 97.4203% (604 - 1000 nm) Diameter 25 mm Dimensions Ø 25 mm Thickness 2 mm Surface Irregularity < λ/2 (waves/inch, Flatness) Shape Round Applications Fluorescence Blocking 6.5 OD (403 - 417 nm) Supplier Location Vermont, USA Selected Product Option 25mm Diameter 2mm UF, ≤ 0.5 waves/inch surface flatness See product details More from Chroma
Plate Beamsplitter	-	230 - 290 nm	5 mm	Contact Supplier	Add to cart to request quote
Product Code Manufacturer Optoman Wavelength Range 230 - 290 nm Center Wavelength 230 - 290 nm Coating BBAR (1100 - 1600 nm) BBAR (1600 - 2600 nm) BBAR (760 - 830 nm) BBHR (230 - 290 nm) Coating Method Ion Beam Sputtering (Front) Ion Beam Sputtering (Rear) Reflectance > 98.5% (230 - 290 nm) (s-pol) Transmittance > 95% (460 - 580 nm, 1100 - 1600 nm) (p-pol) > 80% (760 - 830 nm) (s-pol) > 70% (1600 - 2600 nm) (s-pol) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Parallelism < 10'' Surface Irregularity < λ/10 (633 nm, Flatness) Substrate UV Fused Silica Shape Round Surface Quality 20-10 scratch-dig (S1, S2) Clear Aperture > 22.86 mm Angle of Incidence 60° Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.1 mm Coating Features Broadband Chamfer 0.1 - 0.4 mm (45°) Supplier Location Lithuania See product details More from OPTOSHOP
Plate Beamsplitter	40:60	450 - 700 nm	3 mm	In stock	$ 39.14
Product Code Wavelength Range 450 - 700 nm Cut-On Wavelength 450 nm Cut-Off Wavelength 700 nm Reflectance 40% Transmittance 60% Diameter 50 mm Dimensions Ø 50 mm Thickness 3 mm Split Ratio (R:T) 40:60 Shape Round Surface Quality < 60-40 scratch-dig Diameter Tolerance +0/-0.2 mm Thickness Tolerance ±0.25 mm Supplier Location United Kingdom; Rhode Island, USA See product details More from Knight Optical
Plate Beamsplitter	50:50	193 nm	5 mm	6 - 12 weeks	$ 769.00
Product Code Wavelength Range 193 nm Center Wavelength 193 nm Coating Dielectric Transmittance 45% Diameter 50 mm Dimensions Ø 50 mm Thickness 5 mm Parallelism < 5'' Split Ratio (R:T) 50:50 Surface Irregularity λ/10 (Flatness) Substrate Synthetic Fused Silica Shape Round Angle of Incidence 45° Wedge < 5'' Weight 22 g Transmittance Tolerance ±5% Supplier Location California, USA See product details More from OptoSigma
Plate Beamsplitter	25:75	400 - 700 nm	5 mm	2 weeks	$ 250.00
Product Code Wavelength Range 400 - 700 nm Center Wavelength 400 - 700 nm Transmission Wavelength 400 - 700 nm 550 nm Coating Dielectric Transmittance < 90% (400 - 700 nm) 75% (550 nm) Diameter 30 mm Dimensions Ø 30 mm Thickness 5 mm Split Ratio (R:T) 25:75 Surface Irregularity λ/10 (Flatness) Substrate BK7 Shape Round Surface Quality 10-5 scratch-dig Angle of Incidence 45° Damage Threshold Pulsed 2.1 J/cm² (10 ns, 20 Hz) Wedge 1° Weight 9 g Wedge Tolerance ±5' Transmittance Tolerance ±3% Supplier Location California, USA See product details More from OptoSigma
Plate Beamsplitter	50:50	420 - 680 nm	1 mm	Contact Supplier	$ 53.52
Product Code Wavelength Range 420 - 680 nm Cut-On Wavelength 420 nm Cut-Off Wavelength 680 nm Reflectance 50% Transmittance 50% Dimensions 16 x 16 x 1.1 mm Thickness 1 mm Split Ratio (R:T) 50:50 Substrate Float Glass Shape Square Surface Quality 60-40 scratch-dig Clear Aperture 14.4 x 14.4 x 0.99 mm Angle of Incidence 45° Diameter Tolerance +0/-0.2 mm Thickness Tolerance ±0.25 mm Length 16 mm Width 16 mm Supplier Location United Kingdom; Rhode Island, USA See product details More from Knight Optical
Plate Beamsplitter	50:50	1064 nm (Front, Center Wavelength) 1064 nm (Rear, Center Wavelength)	6.35 mm (0.25")	Contact Supplier	$ 226.55
Product Code Wavelength Range 1064 nm (Front, Center Wavelength) 1064 nm (Rear, Center Wavelength) Center Wavelength 1064 nm (Front) 1064 nm (Rear) Reflection Wavelength 1064 nm Coating Reflective V-Coating (1064 nm) AR/Transmissive V-Coating (1064 nm) (Rear) Coating Method Electron Beam Evaporation (Front) Electron Beam Evaporation (Rear) Reflectance 50% (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' Split Ratio (R:T) 50:50 Surface Irregularity λ/10 (546 nm, Flatness) Substrate UV Fused Silica Shape Round Surface Quality 10-5 scratch-dig 5/3x0.025 (ISO-7) Angle of Incidence 0° Diameter Tolerance +0/-0.1 mm Coating Features Multi Wavelength Narrowband Reflectance Tolerance ±3% Supplier Location Germany See product details More from LASEROPTIK
Plate Beamsplitter	30:70	400 - 700 nm	3 mm	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 400 - 700 nm Coating Dielectric Dimensions 51 x 76 mm (±0.38 mm) Thickness 3 mm Split Ratio (R:T) 30:70 Surface Irregularity 4 - 6λ (Flatness) Substrate Float Glass Shape Rectangular Angle of Incidence 45° Quality 80-50 Supplier Location Vermont, USA See product details More from omega optical
Plate Beamsplitter	70:30	420 - 700 nm	3 mm	1 weeks	$ 147.00
Product Code Wavelength Range 420 - 700 nm Center Wavelength 420 - 700 nm Diameter 25 mm Dimensions Ø 25 mm Thickness 3 mm Parallelism 30'' Split Ratio (R:T) 70:30 Surface Irregularity λ/4 (Flatness) Substrate Quartz Shape Round Clear Aperture Ø 22 mm (Minimum) Supplier Location New Hampshire, USA See product details More from Andover
Plate Beamsplitter	20:80	248 - 400 nm (Center Wavelength)	2 mm	12 weeks	$ 57.00
Product Code Wavelength Range 248 - 400 nm (Center Wavelength) Center Wavelength 248 - 400 nm Reflectance 20% Transmittance 80% Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 2 mm Split Ratio (R:T) 20:80 Surface Irregularity λ, 4λ (Flatness) Substrate Fused Silica Shape Round Surface Quality 3x0.1 (ISO-7) Angle of Incidence 45° Center Thickness 2 mm Supplier Location Pennsylvania, USA See product details More from Excelitas
Plate Beamsplitter	70:30	800 nm	8 mm	Contact Supplier	$ 260.00
Product Code Wavelength Range 800 nm Center Wavelength 800 nm Reflectance 70% Transmittance 30% Dimensions Ø 50.8 x 8 mm Thickness 8 mm Parallelism 30'' Split Ratio (R:T) 70:30 Surface Irregularity λ/10 (633 nm, Flatness) Substrate UV Fused Silica Shape Round Surface Quality 20-10 scratch-dig (S1) 20-10 scratch-dig (S2) Clear Aperture 43.18 x 6.8 mm Angle of Incidence 45° (±3°) Diameter Tolerance +0/-0.12 mm Applications Ultrafast Laser Optics Damage Threshold Pulsed > 0.1 J/cm² (50 fs, 800 nm) Back Side Reflectance < 0.5% Chamfer 0.3 mm (45°) Transmittance Tolerance ±3% Reflectance Tolerance ±3% Supplier Location Lithuania See product details More from EKSMA Optics
Plate Beamsplitter	50:50	1000 - 12000 nm	5 mm	Contact Supplier	$ 890.94
Product Code Wavelength Range 1000 - 12000 nm Coating BBAR, Nickel Reflectance < 7% (1000 - 12000 nm, Average, Front) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Split Ratio (R:T) 50:50 Surface Irregularity λ/4 (633 nm, Flatness) Substrate Zinc Selenide Shape Round Surface Quality 40-20 scratch-dig Clear Aperture > Ø 22.86 mm Diameter Tolerance +0/-0.2 mm Wedge 30' Wedge Tolerance ±10' Center Thickness Tolerance ±0.4 mm Supplier Location New Jersey, USA See product details More from Thorlabs