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488 nm RazorEdge Dichroic™ laser beamsplitter

Part Number: LPD02-488RU-25

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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: LPD02-488RU  LPD02  488RU
488 nm RazorEdge Dichroic™ laser beamsplitter
Each beamsplitter reflects a standard laser line incident at 45° while efficiently passing the longer Raman-shifted wavelengths. The filters exhibit ultrasteep transitions from reflection to transmission, with a guaranteed transition width of < 1% of the laser wavelength for the U-grade version. This laser dichroic beamsplitter is optimized for reflecting laser beams up to 2.5 mm in diameter while minimizing RWE.
Part NumberSizePrice1Stock StatusQuantity
LPD02-488RU-2525 mm x 3.5 mm$575In StockAdd To Cart
LPD02-488RU-25x36x1.125.2 mm x 35.6 mm x 1.1 mm
(unmounted)
$795In StockAdd To Cart
LPD02-488RU-25x36x2.025.2 mm x 35.6 mm x 2.0 mm
(unmounted)
$795In StockAdd To Cart

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

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Custom Sizing Limits:
Diameter Range: 5mm - 25.4mm
Rectangular Dimensions: 5mm - 44mm

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% 488 nm
Reflection Band 1 (p-pol)Rabs > 90% 488 nm
Reflection Band 1 (s-pol)Rabs > 98% 488 nm
Edge Wavelength 1492.8 nm
Transmission Band 1Tavg > 93% 494.3 – 756.4 nm

General Filter Specifications
SpecificationValue
Angle of Incidence45 degrees with a shift of <= 0.20%/degree (35 – 55 degrees) see MyLight for performance
Cone Half-angle0.5 degrees
Optical Damage Rating1 J/cm2 @ 532 nm (10 ns pulse width)
SteepnessUltra Steep
Laser Wavelength 1488 nm
Edge Steepness (%)0.5%
Edge Steepness (nm)2.4 nm
Edge Steepness (cm-1)101.9 cm-1
Transition Width (nm)4.9 nm
Transition Width (cm-1)203 cm-1
Filter Effective Index2.45 Understanding ‘Effective Index of Refraction’ neff
Flatness / RWE ClassificationLaser
Reflected Wavefront Error< 6λ P-V RWE @ 632.8 nm

Physical Filter Specifications (applies to standard sized parts; contact us regarding other sizes)
SpecificationValue
Transverse Dimensions (Diameter)25 mm
Transverse Tolerance (mounted)+ 0.0 / - 0.1 mm
Filter Thickness (Mounted)3.5 mm
Filter Thickness Tolerance (Mounted)± 0.1 mm
Clear Aperture (mounted)≥ 22 mm
Transverse Dimensions (L x W)25.2 mm x 35.6 mm
Transverse Tolerance (unmounted)± 0.1 mm
Clear Aperture (unmounted)≥ 80%
Scratch-Dig60-40
Substrate TypeFused Silica
Substrate Thickness 1 (unmounted)2.0 mm
Substrate Thickness Tolerance 1 (unmounted)± 0.1 mm
Substrate Thickness 2 (unmounted)1.05 mm
Substrate Thickness Tolerance 2 (unmounted)± 0.05 mm
Orientation (Diameter)Arrow on ring indicates preferred direction of propagation of light.
Orientation (L x W)Reflective surface marked with part number - Orient in direction of incoming light

Laser Clean-up Filters

LL01-488.png

488 nm MaxLine® laser clean-up filter

• Laser Wavelength = 488 nm
• Tabs > 90% 488 nm
• FWHM of 1.9 nm (typical); 3.4 nm (maximum)


Custom sizing available in less than a week (sizing fee applies).
Part # LL01-488-12.5
$305
(Non-US pricing info)


Edge Filters

LP02-488RU.png

488 nm RazorEdge® ultrasteep long-pass edge filter

• Laser Wavelength = 488 nm
• 203 cm-1 transition
• Tavg > 93% 494.3 – 1100.8 nm


Custom sizing available in less than a week (sizing fee applies).
Part # LP02-488RU-25
$695
(Non-US pricing info)



LP02-488RE.png

488 nm RazorEdge® ultrasteep long-pass edge filter

• Laser Wavelength = 488 nm
• 102 cm-1 transition
• Tavg > 93% 491.2 – 1100.8 nm


Custom sizing available in less than a week (sizing fee applies).
Part # LP02-488RE-25
$1025
(Non-US pricing info)


Notch Filters

NF03-488E.png

488 nm StopLine® single-notch filter

• Laser Wavelength = 488 nm
• Typical Notch Bandwidth = 14 nm
• ODabs > 6 488 nm


Custom sizing available in less than a week (sizing fee applies).
Part # NF03-488E-25
$845
(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.
Tech Note
TopicDescription
Cleaning Optical FiltersInstructions for cleaning hard coated optical filters
Filter ReliabilityCompares the performance and reliability of hard coated filters to traditional soft-coated filters and provides information about the testing standards for Semrock filters
Flatness of Dichroic BeamsplittersDescribes the impact of non-flat dichroic beamsplitters on microscope image fidelity
Measuring Light with Wavelengths & WavenumbersCompares units of wavelength to wavenumbers and provides formulas for calculating wavenumber shift
Laser Damage ThresholdProvides information for calculating laser damage threshold for pulsed and continuous wave lasers
Filter Types for Raman Spectroscopy ApplicationsCompares the performance of different combinations of LWP and SWP edge filters, notch and laser line filters for Raman applications
RazorEdge Filter LayoutsDescribes two different filter layouts that are commonly used in Raman applications
Journal Article
TopicDescription
Thin-Film Filters for Raman SpectroscopyTuran Erdogan, PhD, and Victor Mizrahi, PhD, Semrock Inc., Spectroscopy, December 2004
Describes the types and functions of filters commonly used in Raman spectroscopy
White Paper
TopicDescription
Flatness of Dichroic Beamsplitters Affects Focus and Image QualityAnalysis of how the radius of curvature of a dichroic filter affects focal plane shift, spot size and image fidelity in fluorescence microscopy.
Application
TopicDescription
Raman SpectroscopyAn overview of Raman spectroscopy, including solutions from Semrock and additional learning resources.

488 RazorEdge Dichroic Beamsplitter U-Grade LPD02-488RU 488RU LPD02 RU LPD Laser LPD02-488RU-25 LPD02-488RU-25x36x2.0 LPD02-488RU-25x36x1.1

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