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458 nm RazorEdge® ultrasteep long-pass edge filter

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RazorEdge filters allow you to see the weakest signals closer to the laser line, especially for Raman spectroscopy applications. With their deep laser-line blocking, ultrawide and low-ripple passbands, hard-coated reliability, and high laser damage threshold, they offer lasting performance and value.

Note on spectral plots:
In the past, each shipment has included a spectral plot for every filter and every lot code in the shipment. In an effort to be more eco-friendly, we will no longer be including these plots with each shipment. If you require spectral plot data, please see here for more information.

Optical Specifications
Transmission BandTavg > 93% 463.9 – 1032.9 nm
Laser Wavelength457.9 nm
Edge Wavelength461.4 nm
Blocking BandODabs > 6 457.9 nm
ODavg > 6 367 – 457.9 nm (typical)
Transition Width216 cm-1
4.6 nm
Edge Steepness0.5%
108.7 cm-1
2.3 nm

General Specifications
Angle of Incidence0 ± 2 °
Cone Half-angle5 °
Filter Effective Index2.0 Understanding 'Effective Index of Refraction' neff
Optical Damage Rating0.5 J/cm² @ 266 nm (10 ns pulse width)
1 J/cm² @ 532 nm (10 ns pulse width)

Physical Specifications (for standard parts - please contact us for custom sizes)
Mounted / UnmountedMounted
Size25 x 3.5 mm
50 x 3.5 mm
Transverse Tolerance, Mounted+ 0.0 / - 0.1 mm
Filter Thickness, Mounted3.5 mm
Filter Thickness Tolerance, Mounted± 0.1 mm
Clear Aperture≥ 22 mm
≥ 45 mm
Surface Quality (Scratch-Dig)60-40
Substrate Thickness2.0 mm
Substrate TypeFused Silica
OrientationArrow on ring indicates preferred direction of propagation of light


  • Size: 25 x 3.5 mm
  • Transverse Dimensions, Diameter: 25 mm


  • Size: 50 x 3.5 mm
  • Transverse Dimensions, Diameter: 50 mm


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Optical Density

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Semrock Spectral Plot Info

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