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  • 224.3 nm Ultrasteep Long Pass Filter

    The MP-LPF-224 is an ultrasteep long pass filter designed specifically for the 224.3 nm laser line, primarily used in UV Raman spectroscopy, fluorescence detection, laser spectrum analysis, and precision optical systems. This filter offers high blocking performance with OD > 6 at 224.3 nm, and provides an average transmittance greater than 90% over the 235–505.9 nm band. It is fabricated on fused silica substrate, ensuring excellent UV transmission and environmental stability.

    Product features:Optimized for 224.3 nm laser;Blocking depth > OD6 at 224.3 nm;Average transmittance > 90% from 235 to 505.9 nm;Ultrasteep spectral edge transition, suitable for Raman applications;Fused silica substrate;Standard diameter 25 mm, clear aperture ≥ 22 mm

    Part Number:MP-LPF-224

    Application area:224.3 nm UV Raman spectroscopy systems | Deep-UV Raman detection | UV fluorescence spectroscopy | Semiconductor material analysis | Research-grade UV optical equipment

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    Main parameters
  • Core parameters
  • Laser Wavelength Transmission Band

    224.3 nm Tavg > 90% 235 -505.9 nm

  • Dimension Drawing
  • General Parameters

    Specification

    Value

    Laser Wavelength

    224.3 nm

    Transmission Band

    Tavg > 90%  235 -505.9 nm

    Blocking Band

    OD > 6  224.3 nm

    Blocking Band

    ODavg > 6  202 – 224.3 nm (typical)

    Edge Steepness

    0.033

    Edge Steepness

    1424.2 cm⁻¹

    Edge Steepness

    Ultrasteep (for Raman)

    Edge Steepness

    7.4

    Edge Wavelength

    235.6 nm

    Transition Width

    10.1 nm

    Transition Width

    1920 cm-¹

    Angle of Incidence

    0 ± 2°

    Cone Half-angle

    Clear Aperture

    ≥ 22 mm

    Transverse Dimensions, Diameter

    25 mm

    Filter Thickness, Mounted

    3.5 mm

    Filter Thickness Tolerance, Mounted

    ± 0.1 mm

    Filter Thickness, Unmounted

    2.0 mm

    Filter Thickness Tolerance, Unmounted

    ± 0.1 mm

    Surface Quality (Scratch-Dig)

    60-40

    Filter Effective Index

    3.2

    Optical Damage Rating

    0.5 J/cm2 @ 266 nm (10 ns pulse width),1 J/ @ 53 cm2 2 nm (10 ns pulse width)

    Orientation

    Arrow on ring is preferred direction of propagation of light

    Substrate Type

    Fused Silica


    Spectral Characteristic Curves

     

    Transmittance-Wavelength Spectrum

     图片2.png

     

    Optical Density Spectrum

     

    图片3.png


    Optional Configurations

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    Downloads

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  • Product title: 224.3 nm Ultrasteep Long Pass Filter
  • Product link: https://www.idealphotonics.com/product/detail/1625.html
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