Physics:Yttrium lithium fluoride

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Yttrium lithium fluoride (LiYF4, sometimes abbreviated YLF) is a birefringent crystal, typically doped with neodymium or praseodymium and used as a gain medium in solid-state lasers.[1] Yttrium is the substitutional element in LiYF4. The hardness of YLF is significantly lower than other commons crystalline laser media, i.e. yttrium aluminium garnet.[2]

References

  1. Ignat’ev, A. I.; Nikonorov, N. V.; Mochalov, I. V.; Tsygankova, E. V.; Reĭterov, V. M. (2007-11-01). "Features of the etching of an yttrium–lithium fluoride crystal in HNO3 solutions" (in EN). Journal of Optical Technology 74 (11): 776–778. doi:10.1364/JOT.74.000776. https://opg.optica.org/jot/abstract.cfm?uri=jot-74-11-776. 
  2. Chicklis, E.P.; Folweiler, R.C.; Naitnan, C.S.. "0.85 MICRON SOLID STATE LASER: MATERIAL EVALUATION". https://apps.dtic.mil/sti/pdfs/AD0909527.pdf. 

See also