RMI Brewster Window - BK7 - FS - UVFS

Specifications

Substrate Material: BK7, UV Fused Silica, Fused Silica
Surface Quality (Scratch-Dig): 10-5
Wavefront Distortion: <= Lambda/10
Thickness And Diameter: Based on customer needs
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Features


  • Material Options: ZnSe, ZnS, Ge, Silicon, CaF2, Sapphire, Fused Silica, SF, BK7

  • Diameter Tolerance: +0.0''/-0.010''

  • Thickness Tolerance: ±0.010''

  • Wedge Surface Figure: < 3 arc min

  • Surface Quality: 40/20 for ZnSe, ZnS, Ge, and Silicon; 20/10 for CaF2 and Sapphire; 10/5 for Fused Silica, SF, BK7

  • Clear Aperture (CA) Chamfer: 0.01'' - 0.03'' @ 45° for most materials; 0.02'' @ 45° for ZnSe, ZnS, Ge, Silicon, CaF2, Sapphire, Fused Silica, SF, BK7

  • Surface Figure: λ/40 @ 10.6µm for ZnSe, ZnS, Ge, and Silicon; λ/4 for CaF2 and Sapphire; λ/10 for Fused Silica, SF, BK7

  • Transmittance: > 85%

  • Lens Types: Spherical Lens, Cylindrical Lens, Flats/Plano


 

Applications


  • Infrared Imaging Systems: For thermal cameras and environmental monitoring requiring IR transparency

  • Laser Optics and Beam Steering: Ideal for high-power CO₂, YAG, and IR lasers due to low absorption and high damage threshold

  • Spectroscopy and Metrology: Enables accurate analysis across UV, VIS, NIR, and IR spectra

  • Defense and Aerospace Systems: Robust optical windows for harsh operational environments

  • Scientific Instrumentation: Suitable for interferometers, polarizers, and research-grade optical assemblies