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325 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.

Optical Specifications
Transmission BandTavg > 90% 329.2 – 733.1 nm
Laser Wavelength325 nm
Edge Wavelength327.5 nm
Blocking BandODavg > 6 200 – 325 nm (typical)
OD > 6 325 nm
Transition Width3.3 nm
305 cm-1
Edge Steepness0.5%
153.1 cm-1


General Specifications
Angle of Incidence0 ± 2 °
Cone Half-angle5 °
Filter Effective Index2.37 Understanding 'Effective Index of Refraction' neff
Optical Damage Rating0.5 J/cm² @ 266 nm (10 ns pulse width),1 J/ @ 53 cm² 2 nm (10 ns pulse width)


Physical Specifications (for standard parts - please contact us for custom sizes)
Transverse Dimensions, Diameter25 mm
Filter Thickness, Mounted3.5 mm
Filter Thickness Tolerance, Mounted± 0.1 mm
Filter Thickness, Unmounted2.0 mm
Filter Thickness Tolerance, Unmounted± 0.1 mm
Clear Aperture≥ 22 mm
Surface Quality (Scratch-Dig)60-40
Substrate TypeFused Silica
OrientationArrow on ring is preferred direction of propagation of light


LP03-325RU-25

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

LP03-325RU-50

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

Transmission

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Optical Density

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Semrock Spectral Plot Info
LP03-325RU_Spectrum

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LP03-325RU

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