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442 nm laser BrightLine® single-edge laser-flat dichroic beamsplitter

Part Number: Di02-R442-25x36

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  • Your filter spectrum may differ slightly from the typical spectrum above, but is certified to meet the optical specifications noted below.
Semrock Optical Filter: Di02-R442  Di02  R442
442 nm laser BrightLine® single-edge laser-flat dichroic beamsplitter
The perfect beamsplitters for the most popular lasers used in fluorescence imaging, including newer all-solid-state lasers. All beamsplitters in this category have exceptional reflectance at the laser wavelengths, improved ("laser-grade") flatness, and anti-reflection (AR) coatings to minimize imaging artifacts resulting from the coherent laser light.

Interested in an improved flatness version?
1λ P-V RWE on 1mm Di03-R442-t1 now available
λ/5 P-V RWE on 3mm Di03-R442-t3 now available
Part NumberSizePrice1Stock StatusQuantity
Di02-R442-25x3625.2 mm x 35.6 mm x 1.1 mm
(unmounted)
$405In StockAdd To Cart
Di02-R442-22x2922.0 mm x 29.0 mm x 1.1 mm
(unmounted)
$405Ships in 2 daysAdd To Cart

Don’t see a size you need? Create your own custom sized part – available in less than a week.

Select Shape & Dimensions:
Diameter Unhoused / Unmounted
Rectangular Unhoused / Unmounted
  
Diameter: mmDimension 1: mm
Dimension 2: mm 
  
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Custom sized parts are non-returnable.
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Custom Sizing Limits:
Diameter Range: 5mm - 50.8mm
Rectangular Dimensions: 5mm - 55mm

Substrate thickness/tolerance as listed on Specifications tab.
Dimensional tolerances are ±0.1mm for unhoused parts.

For sizes outside the limits listed above, please contact customer service at 1-866-SEMROCK



1) US domestic pricing only. If you are ordering from outside the US, please contact your nearest regional distributor for the correct list price.
Optical Specifications
SpecificationValue
Reflection Band 1Rabs > 94% 439 – 457.9 nm
Reflection Band 1 (p-pol)Rabs > 90% 439 – 457.9 nm
Reflection Band 1 (s-pol)Rabs > 98% 439 – 457.9 nm
Reflection Band 2Ravg > 90% 350 – 439 nm
Edge Wavelength 1462 nm
Transmission Band 1Tavg > 93% 466.1 – 900 nm
Laser Wavelengths 1440 +3/-1 nm, 442.0 nm & 457.9 nm

General Filter Specifications
SpecificationValue
Angle of Incidence45 degrees with a shift of 0.35%/degree (40 – 50 degrees)
Cone Half-angle0.5 degrees
Optical Damage Rating1 J/cm² @ 532 nm (10 ns pulse width)
FlatnessLaser Flat
SteepnessSteep
Effective Index1.77

Physical Filter Specifications (applies to standard sized parts; contact us regarding other sizes)
SpecificationValue
Transverse Dimensions (L x W)25.2 mm x 35.6 mm
Transverse Tolerance± 0.1 mm
Filter Thickness (unmounted)1.05 mm
Filter Thickness Tolerance (unmounted)± 0.05 mm
Clear Aperture≥ 80% (elliptical)
Scratch-Dig60-40
Substrate TypeFused Silica
Substrate Thickness (unmounted)1.05 mm
Substrate Thickness Tolerance (unmounted)± 0.05 mm
OrientationReflective surface marked with part number - Orient in direction of incoming light

Complementary Set Filters

FF01-448_20.png

448/20 nm BrightLine® single-band bandpass filter

• Tavg > 93% 438 – 458 nm
• Center Wavelength of 448 nm and GMBW of 20 nm
• FWHM of 25 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-448/20-25
$355
(Non-US pricing info)



FF01-482_25.png

482/25 nm BrightLine® single-band bandpass filter

• Tavg > 93% 469.5 – 494.5 nm
• Center Wavelength of 482 nm and GMBW of 25 nm
• FWHM of 30.1 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-482/25-25
$305
(Non-US pricing info)


Laser Clean-up Filters

LD01-439_8.png

439/8 nm MaxDiode™ laser clean-up

• Laser Wavelength = 439 nm
• Tavg > 90% 435 – 443 nm
• Center Wavelength of 439 nm and GMBW of 8 nm


Custom sizing available in less than a week (sizing fee applies).
Part # LD01-439/8-12.5
$265
(Non-US pricing info)



LL01-442.png

441.6 nm MaxLine® laser clean-up filter

• Laser Wavelength = 441.6 nm
• Tabs > 90% 441.6 nm
• FWHM of 1.7 nm (typical); 3.1 nm (maximum)


Custom sizing available in less than a week (sizing fee applies).
Part # LL01-442-12.5
$305
(Non-US pricing info)



LL01-458.png

457.9 nm MaxLine® laser clean-up filter

• Laser Wavelength = 457.9 nm
• Tabs > 90% 457.9 nm
• FWHM of 1.7 nm (typical); 3.2 nm (maximum)


Custom sizing available in less than a week (sizing fee applies).
Part # LL01-458-12.5
$305
(Non-US pricing info)


Edge Filters

BLP01-442R.png

442 nm EdgeBasic™ best-value long-pass edge filter

• Filter with 50% edge at 450 nm
• 552 cm-1 transition
• Tavg > 93% from 454 – 900 nm


Custom sizing available in less than a week (sizing fee applies).
Part # BLP01-442R-25
$355
(Non-US pricing info)



BLP01-458R.png

441.6 & 457.9 nm EdgeBasic™ best-value long-pass edge filter

• Filter with 50% edge at 466 nm
• 552 cm-1 transition avg > 93% from 470.7 – 900 nm


Custom sizing available in less than a week (sizing fee applies).
Part # BLP01-458R-25
$355
(Non-US pricing info)


[x]
US domestic pricing only. If you are ordering from outside the US, please contact your nearest regional distributor for the correct list price.

442 Laser Flat Dichroic Beamsplitter Di02-R442 R442 Laser-Flat Single-edge Di02-R Di02-R442-25x36 Di02-R442-22x29

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