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Polarizer
    Polarizer is used to change un-polarized beam into linear polarized beam. Innowit offer complete series of polarizers, include Glan Taylor Polarizer, Glan Laser Polarizer, Glan Thompson Polarizer, Brewster Polarizer, Wollaston Polarizer, Rochon Polarizer, Polarization Beamsplitter Plate, Polarization Beamsplitter Cube, Dichroic Sheet Polarizer and etc.
  • DETAIL
  • STANDARD PRODUCT
  • BASIC PROPERTIES
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  • Material

    a-BBO, Calcite, YVO4

    Wavelength Range

    a-BBO: 220-3000nm; Calcite: 350-2300nm; YVO4: 500-4000nm

    Extinction Ratio

    <5x10-6

    Surface Quality

    20/10 scratch and dig

    Beam Deviation

    <3 arc minutes

    Wavefront Distortion

    λ/4@632.8nm

    Damage Threshold

    >10MW/cm2

    Coating

    Single Layer MgF2@1064nm

    Mount

    Black Anodized Aluminium


  •  Comparison of the four materials



    YVO4

    Calcite

    a-BBO

    Quartz

    Transparency

    500-4000nm

    350-2300nm

    220-3000nm

    200-2300nm

    Crystal Class (Uniaxial)

    Positive
    no=na=nb, ne=nc

    Negative
    no=na=nb, ne=nc

    Negative
    no=na=nb, ne=nc

    Positive
    no=na=nb, ne=nc

    Mohs Hardness

    5

    3

    4.5

    7

    Thermal Expansion Coefficient

    aa=4.43x10-6/K
    ac=11.37x10-6/K

    aa=24.39x10-6/K
    ac=5.68x10-6/K

    aa=4x10-6/K
    ac=36x10-6/K

    aa=6.2x10-6/K
    ac=10.7x10-6/K

    Hygroscopic Susceptibility

    Low

    Low

    Low

    Low

     


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