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LiB3O5, LBO Crystals

Physical and optical properties

Single crystal LiB3O5
Lattice parameters a = 8.46 Å, b = 7.38 Å , c = 12.717 Å
Density 2.474 g/cm3
Mohs hardness 6-7
Transparency range 155 nm - 3,2 μm @“0“ transmittance level
Sellmeier equations @ T = 293 K (λ in μm)) nX2 = 2,4542 + 0,01125/(λ2 - 0,01135) - 0,01388 λ2;
nY2 = 2,5390 + 0,01277/(λ2 - 0,01189) - 0,01849 λ2 + 4,3025×10-5 λ4 - 2,9131×10-5 λ6;
nZ2 = 2,5865 + 0,0131/(λ2 - 0,01223) - 0,01862 λ2 + 4,5778×10-5 λ4 - 3,2526×10-5 λ6
Refractive indices @1064 nm nX = 1.5656; nY = 1.5905; nZ = 1.6055

Standard specifications

Orientation accuracy <30 arcmin
Clear aperture >90%
Face dimensions tolerance +0/-0.1 mm
Length tolerance ±0.1 mm
Parallelism error <20 arcsec
Perpendicularity error <10 arcmin
Protective chamfers <0.1 mm at 45˚
Surface quality 10-5 S-D
Wavefront distortion λ/4@632.8 nm
Coatings AR(R<0,25%) at operating wavelength on both faces
Laser induced damage threshold >1 GW/cm2@1064 nm, 10 ns
Mount Unmounted