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  • 1064 nm Ultra-Steep Long-Wave Pass Filter

    The MP-LPF-1064 is an ultra-steep edge longpass filter specifically designed for 1064 nm Raman spectroscopy systems. Manufactured with high-performance hard dielectric coatings, this filter effectively blocks the 1064 nm laser while providing high transmission in the Raman Stokes signal region. It is particularly suitable for near-infrared Raman spectroscopic detection. Featuring an extremely narrow transition band and excellent rejection performance, the filter maximises the retention of Raman signals close to the excitation wavelength, thereby improving system detection sensitivity and signal-to-noise ratio. It is a critical optical component for both research and industrial-grade Raman spectrometers.

    Product features:Optimised for 1064 nm laser;Laser rejection depth OD > 6;Ultra-steep cut-off edge design;Average transmittance > 93%;High-stability hard dielectric coating;Fused silica substrate

    Part Number:MP-LPF-1064

    Application area:Raman spectrometers | Confocal Raman microscopes | Biomedical Detection | Chemical substance detection | Research and laboratory equipment

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    Main parameters
  • Core parameters
  • Laser Wavelength Transmission Band

    1064nm Tavg > 93% 1070.9–2000 nm

  • Dimension Drawing
  • General Parameters

    Specification

    Value

    Laser Wavelength

    1064nm

    Transmission Band

    Tavg > 93 %  1070.9–2000 nm

    Blocking Band

    OD > 6  1064 nm

    Blocking Band

    ODavg > 6  852–1064 nm

    Edge Steepness

    Ultrasteep (for Raman)

    Edge Steepness

    0.002

    Edge Steepness

    18.8cm-1

    Edge Steepness

    2.1

    Edge Wavelength

    1067.1 nm

    Transition Width

    5.3 nm

    Transition Width

    47 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

    2.01

    Optical Damage Rating

    0.5 J/cm² @ 266 nm (10 ns pulse width), 1 J/cm² @ 532 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1.png 

     

     

    Optical Density Spectrum

    图片2.png 


    Optional Configurations

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    Downloads

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  • Product title: 1064 nm Ultra-Steep Long-Wave Pass Filter
  • Product link: https://www.idealphotonics.com/product/detail/1684.html
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