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

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Product introduction

Material	α -BBO,Calcite
Wavelength range	α -BBO ：200-900nm ，Calcite ：350-2300nm
Extinction Ratio	α - -BBO： <510-6 ，Calcite :<510-5
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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