Product

  • Glan Thompson Polarizer
  • Glan Thompson Polarizer

Glan Thompson Polarizer

It is composed of two ice SPAR or A-BBO crystals glued together, which has a better extinction ratio than air gap gran, and has A very large field of view Angle depending on the ratio of length and aperture, the current standard L/A is 1.6:12, the value of 5:1 and 3.0: Gtownshend has a very wide use band A-BBO prism can be used for 220~900nm, Iceland SPAR prisms can be used for 350~2300nm.
polarizer PGT wavelength

Product introduction

  • It is composed of two ice SPAR or A-BBO crystals glued together, which has a better extinction ratio than air gap gran, and has A very large field of view Angle depending on the ratio of length and aperture, the current standard L/A is 1.6:12, the value of 5:1 and 3.0: Gtownshend has a very wide use band A-BBO prism can be used for 220~900nm, Iceland SPAR prisms can be used for 350~2300nm.

    Material

    α -BBO,Calcite

    Wavelength range

    α -BBO 200-900nm ,Calcite  :350-2300nm

    Extinction Ratio

    α - -BBO:  <5*10-6 ,Calcite :<5*10-5

    smoothness

    20/10Scratch/Dig

    beam deviation

    <3 arc minutes

    Transmission wavefront

    λ/4@633nm

    Damage threshold

    >200MW/cm²

    Coating

    Single MgF2

    Holder

    Black Anodized Aluminium


    A.α-BBO Glan-Thompson prism   B.Glan-Thompson prism

    Features/Functions

    Constructed of two Icelandic stones or α-BBO crystals glued together, it has a better extinction ratio than air-gap granau, and has a very large field of view. The field of view depends on the ratio of length to aperture , the current standard L/A is 1.6:12, the value is 5:1 and 3.0: Ge Thomson has a very wide use band α-BBO prism can be used for 220~900nm, Iceland stone prism can be used for 350~2300nm.



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