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Doping concentration

1-10 atm.%

Aperture dimensions

Ø1 – 15

Surface quality, S-D


Surface flatness, P-V

<λ/10 @ 632.8 nm


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Alkaline-earth fluorides, which can be easily grown using the standard Czochralski or Bridgman technique, show a wide optical transmission range, a low level of dispersive behavior and limited nonlinear effects under intense laser irradiation. It was recently shown that a single Yb:CaF2 crystal can be grown to diameters of up to about 200 mm, which can be used for high-energy short-pulse lasers with centimeter-sized apertures.

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