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  • 407 nm Ultrasteep Raman Long-Pass Filter

    The MP-LPF-407 is a high-performance ultra-steep edge long-pass filter specifically designed for Raman spectroscopy systems. Manufactured using high-precision ion-beam sputtering (IBS) multi-layer dielectric coatings, it provides a blocking depth of >OD6 at the 407 nm laser line while maintaining an average transmittance >93% over the 412.3–918 nm range. This effectively suppresses Rayleigh scattering and enhances Raman signal collection efficiency. The filter is ideal for 407 nm laser Raman spectrometers, confocal Raman microscopy systems, scientific research, and precision optical detection equipment.

    Product features:Dedicated to 407 nm Raman laser systems;Rayleigh blocking depth > OD6;Ultra‑steep cut‑off edge;Raman shift cut‑off at only 122.2 cm⁻¹;Fused silica substrate – low fluorescence and low stress;Suitable for both research and industrial Raman applications

    Part Number:MP-LPF-407

    Application area:Raman spectrometers | Confocal Raman microscopes | Semiconductor material inspection | 2D material research | Scientific research platforms

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    Main parameters
  • Core parameters
  • Laser Wavelength Transmission Band

    407 nm Tavg > 93 % 412.3–918 nm

  • Dimension Drawing
  • General Parameters

    Specification

    Value

    Laser Wavelength

    407 nm

    Transmission Band

    Tavg > 93 %  412.3–918 nm

    Blocking Band

    OD > 6  407 nm

    Blocking Band

    ODavg > 6  330.1 – 407 nm (typical)

    Edge Steepness

    0.5 %

    Edge Steepness

    122.2 cm-1

    Edge Steepness

    Ultrasteep (for Raman)

    Edge Steepness

    2.0

    Edge Wavelength

    410 nm

    Transition Width

    4.1 nm

    Transition Width

    243 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

    2.2

    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: 407 nm Ultrasteep Raman Long-Pass Filter
  • Product link: https://www.idealphotonics.com/product/detail/1652.html
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