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	Wavelength Range	Thickness	Transmittance	Availability	Price (USD)
Longpass Dichroic Beamsplitter	455 - 800 nm (Coating Range)	1 mm	> 90% (455 - 800 nm, Average) > 85% (455 - 800 nm, Absolute)	In stock	$ 279.16
Product Code Wavelength Range 455 - 800 nm (Coating Range) Cut-On Wavelength 445 nm Reflectance > 90% (455 - 800 nm, Absolute) > 95% (455 - 800 nm, Average) Transmittance > 90% (455 - 800 nm, Average) > 85% (455 - 800 nm, Absolute) Dimensions 25 x 36 mm Thickness 1 mm Parallelism < 3' Shape Rectangular Substrate UV Fused Silica Angle of Incidence 45° Surface Quality 40-20 scratch-dig Clear Aperture > 22.5 x 32.4 mm Transmitted Wavefront Error < λ/4 (633 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Longpass Dichroic Beamsplitter	-	2 mm	97.0584% (590 - 1000 nm)	In stock	$ 425.00
Product Code Cut-On Wavelength 590 nm Transmission Wavelength 590 - 1000 nm Transmittance 97.0584% (590 - 1000 nm) Dimensions 25.5 x 36 x 2 mm Thickness 2 mm Shape Rectangular Applications Fluorescence Surface Irregularity < λ/2 (waves/inch, Flatness) Blocking 3.4 OD (488 - 513 nm) Supplier Location Vermont, USA Selected Product Option 25.5mm x 36mm 2mm UF, ≤ 0.5 waves/inch surface flatness See product details More from Chroma
Longpass Dichroic Beamsplitter	400 - 800 nm (Coating Range)	5 mm	> 90% (520 - 800 nm, Average) > 85% (520 - 800 nm, Absolute)	In stock	$ 363.50
Product Code Wavelength Range 400 - 800 nm (Coating Range) Cut-On Wavelength 505 nm Reflectance > 90% (400 - 800 nm, Absolute) > 95% (400 - 800 nm, Average) Transmittance > 90% (520 - 800 nm, Average) > 85% (520 - 800 nm, Absolute) Diameter 50.8 mm (2") Dimensions Ø 50.8 mm (2") Thickness 5 mm Parallelism < 3' Shape Round Substrate UV Fused Silica Angle of Incidence 45° Surface Quality 40-20 scratch-dig Transmitted Wavefront Error < λ/4 (633 nm) Damage Threshold Pulsed 1.5 J/cm² (0.25 mm, 10 Hz, 10 ns, 532 nm) Thickness Tolerance ±0.1 mm Supplier Location New Jersey, USA See product details More from Thorlabs
Longpass Dichroic Beamsplitter	-	3 mm	98.0967% (495 - 1000 nm)	In stock	$ 525.00
Product Code Cut-On Wavelength 495 nm Transmission Wavelength 495 - 1000 nm Transmittance 98.0967% (495 - 1000 nm) Dimensions 18 x 26 x 3 mm Thickness 3 mm Shape Rectangular Applications Fluorescence Surface Irregularity < λ/4 (waves/inch, Flatness) Supplier Location Vermont, USA Selected Product Option 18mm x 26mm 3mm UF, ≤ 0.25 waves/inch surface flatness See product details More from Chroma
Longpass Dichroic Beamsplitter	1020 - 1550 nm (Coating Range)	3 mm	> 90% (1020 - 1550 nm, Average) > 85% (1020 - 1550 nm, Absolute)	In stock	$ 310.06
Product Code Wavelength Range 1020 - 1550 nm (Coating Range) Cut-On Wavelength 1000 nm Reflectance > 90% (1020 - 1550 nm, Absolute) > 95% (1020 - 1550 nm, Average) Transmittance > 90% (1020 - 1550 nm, Average) > 85% (1020 - 1550 nm, Absolute) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 3 mm Parallelism < 3' Shape Round Substrate UV Fused Silica Angle of Incidence 45° Surface Quality 40-20 scratch-dig Transmitted Wavefront Error < λ/4 (633 nm) Damage Threshold Pulsed 0.25 J/cm² (0.459 mm, 10 Hz, 10 ns, 1064 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Longpass Dichroic Beamsplitter	-	-	> 90% (522 - 660 nm) > 75% (Average 522 - 660 nm)	6 - 12 weeks	$ 312.00
Product Code Transmission Wavelength 522 - 660 nm Reflection Wavelength 462 - 504 nm Transition Wavelength 515 nm Reflectance > 99% (462 - 504 nm) Transmittance > 90% (522 - 660 nm) > 75% (Average 522 - 660 nm) Parallelism 20'' Applications Fluorescence Surface Irregularity 5λ (Flatness) Substrate Synthetic Fused Silica Angle of Incidence 45° Surface Quality 40-20 scratch-dig Weight 5 g Supplier Location California, USA See product details More from OptoSigma
Longpass Dichroic Beamsplitter	523 - 1200 nm (Transmission) 398 - 516 nm (Reflection)	2 mm	97.4563% (523 - 1200 nm)	In stock	$ 450.00
Product Code Wavelength Range 523 - 1200 nm (Transmission) 398 - 516 nm (Reflection) Cut-On Wavelength 523 nm Transmission Wavelength 523 - 1200 nm Reflection Wavelength 398 - 516 nm Reflectance 99.7685% (398 - 516 nm) Transmittance 97.4563% (523 - 1200 nm) Dimensions 25.5 x 36 x 2 mm Thickness 2 mm Shape Rectangular Applications Fluorescence Surface Irregularity < λ/2 (waves/inch, Flatness) Blocking 4.5 OD (917 - 1059 nm) Supplier Location Vermont, USA Selected Product Option 25.5mm x 36mm 2mm UF, ≤ 0.5 waves/inch surface flatness See product details More from Chroma
Longpass Dichroic Beamsplitter	645 - 1000 nm (Transmission) 480 - 635 nm (Reflection)	2 mm	97.1287% (645 - 1000 nm)	In stock	$ 525.00
Product Code Wavelength Range 645 - 1000 nm (Transmission) 480 - 635 nm (Reflection) Cut-On Wavelength 645 nm Transmission Wavelength 645 - 1000 nm Reflection Wavelength 480 - 635 nm Reflectance 99.7675% (480 - 635 nm) Transmittance 97.1287% (645 - 1000 nm) Dimensions 26 x 38 x 2 mm Thickness 2 mm Shape Rectangular Applications Fluorescence Surface Irregularity < λ/2 (waves/inch, Flatness) Supplier Location Vermont, USA Selected Product Option 26mm x 38mm 2mm UF, ≤ 0.5 waves/inch surface flatness See product details More from Chroma
Longpass Dichroic Beamsplitter	1800 - 2100 nm (Coating Range)	5 mm	> 90% (1850 - 2100 nm, Average) > 85% (1850 - 2100 nm, Absolute)	In stock	$ 666.43
Product Code Wavelength Range 1800 - 2100 nm (Coating Range) Cut-On Wavelength 1800 nm Reflectance > 90% (1800 - 2100 nm, Absolute) > 95% (1800 - 2100 nm, Average) Transmittance > 90% (1850 - 2100 nm, Average) > 85% (1850 - 2100 nm, Absolute) Diameter 50.8 mm (2") Dimensions Ø 50.8 mm (2") Thickness 5 mm Parallelism < 3' Shape Round Substrate UV Fused Silica Angle of Incidence 45° Surface Quality 40-20 scratch-dig Clear Aperture > Ø 45.7 mm Transmitted Wavefront Error < λ/4 (633 nm) Damage Threshold Pulsed 5 J/cm² (0.348 mm, 62.5 Hz, 10 ns, 2050 nm) Thickness Tolerance ±0.1 mm Supplier Location New Jersey, USA See product details More from Thorlabs
Longpass Dichroic Beamsplitter	575 - 850 nm (Transmission) 390 - 562 nm (Reflection)	1 mm	98.211% (575 - 850 nm)	In stock	$ 500.00
Product Code Wavelength Range 575 - 850 nm (Transmission) 390 - 562 nm (Reflection) Cut-On Wavelength 575 nm Transmission Wavelength 575 - 850 nm Reflection Wavelength 390 - 562 nm Reflectance 99.9995% (390 - 562 nm) Transmittance 98.211% (575 - 850 nm) Diameter 25 mm Dimensions Ø 25 mm Thickness 1 mm Shape Round Applications Fluorescence Surface Irregularity < 2λ (waves/inch, Flatness) Blocking 3.8 OD (392 - 399 nm) 4.3 OD (434 - 496 nm) Supplier Location Vermont, USA Selected Product Option 25mm Diameter 1mm UF , ≤ 2.0 waves/inch surface flatness See product details More from Chroma
Longpass Dichroic Beamsplitter	-	3 mm	99.9224% (760 - 1000 nm)	In stock	$ 475.00
Product Code Cut-On Wavelength 760 nm Transmission Wavelength 760 - 1000 nm Transmittance 99.9224% (760 - 1000 nm) Diameter 25 mm Dimensions Ø 25 mm Thickness 3 mm Shape Round Applications Fluorescence Surface Irregularity < λ/4 (waves/inch, Flatness) Supplier Location Vermont, USA Selected Product Option 25mm Diameter 3mm UF, ≤ 0.25 waves/inch surface flatness See product details More from Chroma
Longpass Dichroic Beamsplitter	400 - 800 nm (Coating Range)	5 mm	> 90% (655 - 800 nm, Average) > 85% (655 - 800 nm, Absolute)	In stock	$ 363.50
Product Code Wavelength Range 400 - 800 nm (Coating Range) Cut-On Wavelength 638 nm Reflectance > 90% (400 - 800 nm, Absolute) > 95% (400 - 800 nm, Average) Transmittance > 90% (655 - 800 nm, Average) > 85% (655 - 800 nm, Absolute) Diameter 50.8 mm (2") Dimensions Ø 50.8 mm (2") Thickness 5 mm Parallelism < 3' Shape Round Substrate UV Fused Silica Angle of Incidence 45° Surface Quality 40-20 scratch-dig Clear Aperture > Ø 45.7 mm Transmitted Wavefront Error < λ/4 (633 nm) Damage Threshold Pulsed 1.5 J/cm² (0.25 mm, 10 Hz, 10 ns, 532 nm) Thickness Tolerance ±0.1 mm Supplier Location New Jersey, USA See product details More from Thorlabs
Longpass Dichroic Beamsplitter	-	1 mm	92.4494% (550 - 1000 nm)	In stock	$ 325.00
Product Code Cut-On Wavelength 550 nm Transmission Wavelength 550 - 1000 nm Transmittance 92.4494% (550 - 1000 nm) Dimensions 22 x 29 x 1 mm Thickness 1 mm Shape Rectangular Applications Fluorescence Surface Irregularity < 2λ (waves/inch, Flatness) Blocking 4.2 OD (372 - 387 nm) 3.7 OD (409 - 436 nm) 3.7 OD (447 - 455 nm) 4 OD (993 - 1000 nm) Supplier Location Vermont, USA Selected Product Option 22mm x 29mm 1mm UF, ≤ 2.0 waves/inch surface flatness See product details More from Chroma
Longpass Dichroic Beamsplitter	532 nm (Center Wavelength)	6.35 mm (0.25")	99% (1064 nm)	In stock	$ 116.10
Product Code Manufacturer Optoman Wavelength Range 532 nm (Center Wavelength) Center Wavelength 532 nm Transmission Wavelength 1064 nm Reflection Wavelength 532 nm Coating AR/Transmissive V-Coating (1064 nm) Reflective V-Coating (532 nm) AR/Transmissive V-Coating (1064 nm) (Rear) Coating Method Ion Beam Sputtering (Front) Ion Beam Sputtering (Rear) Reflectance > 99.7% (532 nm) Transmittance 99% (1064 nm) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6.35 mm (0.25") Parallelism 10'' Shape Round Surface Irregularity < λ/10 (15 mm, 633 nm, Flatness) Substrate UV Fused Silica Angle of Incidence 0° Surface Quality 20-10 scratch-dig (S1) 20-10 scratch-dig (S2) Clear Aperture 22.86 mm Thickness Tolerance ±0.1 mm Diameter Tolerance +0/-0.1 mm Coating Features Multi Wavelength Narrowband Chamfer 0.2 - 0.4 mm (45°) Supplier Location Lithuania See product details More from OPTOSHOP
Longpass Dichroic Beamsplitter	932 - 1700 nm (Coating Range)	1 mm	> 90% (932 - 1300 nm, Average) > 85% (932 - 1300 nm, Absolute)	In stock	$ 437.16
Product Code Wavelength Range 932 - 1700 nm (Coating Range) Cut-On Wavelength 900 nm Reflectance > 90% (932 - 1700 nm, Absolute) Transmittance > 90% (932 - 1300 nm, Average) > 85% (932 - 1300 nm, Absolute) Dimensions 25 x 36 mm Thickness 1 mm Parallelism < 3' Shape Rectangular Substrate UV Fused Silica Angle of Incidence 45° Surface Quality 40-20 scratch-dig Clear Aperture > 22.5 x 32.4 mm Transmitted Wavefront Error < λ/4 (633 nm) Damage Threshold Pulsed 1 J/cm² (0.25 mm, 10 Hz, 10 ns, 532 nm) 6.5 J/cm² (0.25 mm, 10 Hz, 12 ns, 1064 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Longpass Dichroic Beamsplitter	573 - 1000 nm (Transmission) 425 - 565 nm (Reflection)	3 mm	96.1209% (573 - 1000 nm)	In stock	$ 500.00
Product Code Wavelength Range 573 - 1000 nm (Transmission) 425 - 565 nm (Reflection) Cut-On Wavelength 573 nm Transmission Wavelength 573 - 1000 nm Reflection Wavelength 425 - 565 nm Reflectance 99.8828% (425 - 565 nm) Transmittance 96.1209% (573 - 1000 nm) Dimensions 24 x 34 x 3 mm Thickness 3 mm Shape Rectangular Applications Fluorescence Surface Irregularity < λ/4 (waves/inch, Flatness) Blocking 4.3 OD (385 - 397 nm) Supplier Location Vermont, USA Selected Product Option 24mm x 34mm with Cut Corners For Nikon Eclipse 3mm UF, ≤ 0.25 waves/inch surface flatness See product details More from Chroma
Longpass Dichroic Beamsplitter	400 - 1900 nm (Coating Range)	3 mm	> 95% (1200 - 1900 nm, Average)	In stock	$ 1723.65
Product Code Wavelength Range 400 - 1900 nm (Coating Range) Cut-On Wavelength 1150 nm Reflectance > 95% (400 - 1900 nm, Average) Transmittance > 95% (1200 - 1900 nm, Average) Dimensions 35 x 52 mm Thickness 3 mm Parallelism < 3' Shape Rectangular Substrate UV Fused Silica Angle of Incidence 45° Surface Quality 40-20 scratch-dig Clear Aperture > 29.75 x 44.2 mm Transmitted Wavefront Error < λ/4 (632.8 nm) Reflected Wavefront Error < λ/4 (632.8 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Longpass Dichroic Beamsplitter	-	1 mm	97.9729% (810 - 1200 nm)	In stock	$ 250.00
Product Code Cut-On Wavelength 810 nm Transmission Wavelength 810 - 1200 nm Transmittance 97.9729% (810 - 1200 nm) Dimensions 22 x 27 x 1 mm Thickness 1 mm Shape Rectangular Applications Fluorescence Blocking 3.4 OD (416 - 424 nm) Supplier Location Vermont, USA Selected Product Option 22mm x 27mm 1mm, unspecified flatness for routine non-laser applications See product details More from Chroma
Longpass Dichroic Beamsplitter	-	2 mm	97.6592% (412 - 750 nm)	In stock	$ 425.00
Product Code Cut-On Wavelength 412 nm Transmission Wavelength 412 - 750 nm Transmittance 97.6592% (412 - 750 nm) Dimensions 26 x 38 x 2 mm Thickness 2 mm Shape Rectangular Applications Fluorescence Surface Irregularity < λ/2 (waves/inch, Flatness) Blocking 3.4 OD (350 - 352 nm) 4.6 OD (382 - 386 nm) Supplier Location Vermont, USA Selected Product Option 26mm x 38mm 2mm UF, ≤ 0.5 waves/inch surface flatness See product details More from Chroma
Longpass Dichroic Beamsplitter	-	3 mm	96.1222% (588 - 850 nm)	In stock	$ 475.00
Product Code Cut-On Wavelength 588 nm Transmission Wavelength 588 - 850 nm Transmittance 96.1222% (588 - 850 nm) Dimensions 25.5 x 36 x 3 mm Thickness 3 mm Shape Rectangular Applications Fluorescence Surface Irregularity < λ/4 (waves/inch, Flatness) Supplier Location Vermont, USA Selected Product Option 25.5mm x 36mm 3mm UF, ≤ 0.25 waves/inch surface flatness See product details More from Chroma