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Reference for superior performance of Glan-Taylor |
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Compared to the Glan-Thompson prism, the Glan-Foucault has a narrower acceptance angle over which it will work, but because it uses an air-gap rather than cement, much higher [[irradiance]]s can be used without damage. The prism can thus be used with [[laser]] beams. The prism is also shorter (for a given usable aperture) than the Glan-Thompson design, and the deflection angle of the rejected beam can be made close to 90°, which is sometimes useful. Glan-Foucault prisms are not typically used as polarizing beamsplitters because while the transmitted beam is 100% polarized, the reflected beam is not.
The [[Glan-Taylor prism]] is very similar, except that the crystal axes and transmitted polarization direction are orthogonal to the Glan-Foucault design. This yields higher transmission, and better polarization of the reflected light.<ref name=Fan>{{cite journal | author=J-Y Fan ''et al.'' | title=A study on transmitted intensity of disturbance for air-spaced Glan-type polarizing prisms | journal=Optics Communications | year=2003 | volume=223 | issue=1-3 | pages= 11–16 | doi=10.1016/S0030-4018(03)01618-3 }}</ref> Glan-Foucault prisms are now rarely used, having been mostly replaced by Glan-Taylor polarizers and other more recent designs.
==See also==
*[[Glan-Thompson prism]]
*[[Glan-Taylor prism]]
==References==
<references/>
[[Category:Polarization]]
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