• alpha-BBO
  • Calcite
  • Cr4+YAG
  • Fluoride
  • Sapphire
  • TeO2
  • TGG
  • YAG
  • YVO4
  • YVO4

    YVO4(Yttrium Vanadate) is a positive uniaxial crystal that has good mechanical and physical properties, it is ideal for optical polarizing components. Because of its wide transparency range and large birefringence, YVO4is a better substitute for Calcite or TiO2crystals in some applications like beam displacers, Glan polarizers and other polarizing components.

    Refractive Indices, Birefringence (Δn=ne-no)& Walk-off Angle @ 45º(ρ):
    @ 633nm no=1.99290, ne=2.2154, Δn=0.2225, ρ=6.04º

    @ 1300nm no=1.9500, ne=2.1554, Δn=0.2054, ρ=5.72º

    @ 1550nm no=1.9447, ne=2.1486, Δn=0.2039, ρ=5.69º

    Sellmeier Equation(λ in μm):
    no23.77834 + 0.069736/(λ2-0.04724)-0.0108133λ2
    ne2= 4.59905 + 0.110534/(λ2-0.04813)-0.0122676λ2


    Features and Standard specifications from LNG Optics:

    Orientation accuracy: ± 0.5°

    Dimension tolerance: ± 0.1mm

    Surface Quality: 10/5 S/D

    Flatness: λ/8 @ 632.8nm

    Parallelism: 30 arc seconds

    Wedged angles accuracy: 3 arc minutes

    Perpendicularity: 5 arc minutes

    AR Coatings: single band, broadband