Windows » Plane Windows

Plane Windows are used as substrates for a variety of applications, such as laser windows, output couplers, beamsplitters, beam combiners, mirrors, dichroic filters and plate polarizers.

Considerations in selecting window substrates include transmission range, absorption coefficient, incident laser power density and environmental factors such as pressure, temperature, moisture, abrasion and corrosion.

Plane Windows listed under UV / VIS / NIR substrates are specified for applications involving coating wavelengths 193 nm ≤ λ ≤ 2.0 µm. Units for these substrates are given in mm.

Plane Windows listed under IR substrates are specified for applications involving coating wavelengths λ ≤ 2.0 µm. Units for these substrates are given in inches.

Round, square, and rectangular windows are available in a wide range of size and shape specifications.

RMI Standard Specifications
Materials:	BK7, UVFS, FS, CaF₂, IR grade CaF₂, MgF₂, BaF₂, ZnSe, ZnS, Ge, Si, Cleartran, Chalcogenide glass, Sapphire
Surface Figure: BK7, UVFS, FS: CaF₂, IR grade CaF₂, MgF₂, BaF₂: ZnSe, ZnS, Ge, Si, Cleartran, Chalcogenide glass: Sapphire:	Both Surfaces λ/20 at 633 nm λ/4 at 633 nm λ/40 at 10.6 µm λ/4 at 633 nm
Surface Quality: BK7, UVFS, FS: CaF₂, IR grade CaF₂, MgF₂, BaF₂: ZnSe, ZnS, Ge, Si, Cleartran, Chalcogenide glass: Sapphire:	Both Surfaces 10-5 20-10 40-20 20-10
Diameter Tolerance:	+ 0.000", – 0.010"
Thickness Tolerance:	± 0.010"
Wedge:	≤ 3 arc minutes
Bevels:	0.02"at 45º typical
Clear Aperture:	Exceeds central 85% of diameter

More Windows

Optical Components:

Windows » Plane Windows