Shortpass Filters with Transmission Region Cut-off λ to 420 nm

Short pass filter spectral curveShort Wavepass Filters

A shortpass filter or short wavepass filter (SP filter) is a filter that transmits at shorter wavelengths and rejects longer wavelengths. By design, the transition in a shortpass filter between the 50% cut-off or cut-on to rejection is quite sharp. This makes it much easier to separate excitation from emitted wavelengths without interfering with wavelengths of interest. Short wavepass filters are useful in applications where spectral noise reduction is important or for isolating a particular region of the spectrum.

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  • Available every 50nm from 450nm to 1000nm
  • Mounted in a black anodized aluminium ring
  • Use in combination with longpass filters for custom bandpass filtering
  • Fine tune cut-on wavelengths by changing angle of incidence

  • Emission filters in fluorescence applications
  • Eliminate unwanted radiation over ultraviolet, visible, or infrared
  • Ideal for Raman spectroscopy
  • Order sorting filters
  • Astronomy applications to study IR radiation without visible light
  • Laser-induced fluorescence to isolate source radiation

Product SKUs

  • 600 nm Short Pass, 25.4 mm Dia.

    Curve
    Typical Short Pass Filter Curve
    SP-600-25
    $70.00
    4 in stock
    Add to cart

    Short Pass Filter Specifications | SP-600-25

    Cut-Off Wavelength

    600 nm

    Cut-Off Wavelength (Range)

    600 – 700 nm

    Cut-Off Tolerance

    ±3 nm

    Transmission Region

    Cut-off λ to 420 nm

    Minimum Peak Transmission

    80%

    Slope (OD 0.3 to 4.0)

    ≤ 5%

    Blocking

    10-4 Min. / 10-5 Avg. to 780 nm

    Size (mm)

    25 mm dia.

    Size Tolerance

    +0.0/-0.2 mm

    Thickness

    6.3 mm

    Thickness Tolerance

    +0.0/-0.2 mm

    Scratch/Dig

    80/50

    Clear Aperture

    21 mm

    Mount

    Aluminum, Black Anodized

    Operating Temperature Range

    -20⁰ C to 75⁰ C

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