Plano / Plano Substrates
Our flat or concave superpolished research grade mirror
substrates offer surfaces better than 1 Angstrom surface roughness. When combined
with our high reflectivity / low loss IBS coatings, these mirrors lead the
industry in efficiency and performance. These mirrors are offered in standard
fused silica, zerodur, and silicon substrate material and in varying standard
sizes. GO can provide similar performance using other materials and we would
be pleased to quote different sizes and shapes per your requirements.
- Better than 1 Å surface roughness
- Laser quality 1/10 wave flatness, 10/5 scratch dig
- All GO dielectric high reflector and metal films available
- Other sizes and materials in production and prototype volumes as requested
Part #
- GO-FS050-1
- GO-FS100-1
- GO-FS150-1
- GO-FS200-1
- GO-FS300-1
- GO-FS400-1
- GO-Z050-1
- GO-Z100-1
- GO-Z150-1
- GO-Z200-1
- GO-Z300-1
- GO-Z400-1
- GO-S050-1
- GO-S100-1
- GO-S150-1
- GO-S200-1
- GO-S300-1
- GO-S400-1
- GO-BK050-1
- GO-BK100-1
- GO-BK150-1
- GO-BK200-1
- GO-BK300-1
- GO-BK400-1
Material
- Fused Silica
- Fused Silica
- Fused Silica
- Fused Silica
- Fused Silica
- Fused Silica
- Zerodur
- Zerodur
- Zerodur
- Zerodur
- Zerodur
- Zerodur
- Silicon
- Silicon
- Silicon
- Silicon
- Silicon
- Silicon
- BK-7
- BK-7
- BK-7
- BK-7
- BK-7
- BK-7
Size
- 0.500 inch
- 1.000 inch
- 1.500 inch
- 2.000 inch
- 3.000 inch
- 4.000 inch
- 0.500 inch
- 1.000 inch
- 1.500 inch
- 2.000 inch
- 3.000 inch
- 4.000 inch
- 0.500 inch
- 1.000 inch
- 1.500 inch
- 2.000 inch
- 3.000 inch
- 4.000 inch
- 0.500 inch
- 1.000 inch
- 1.500 inch
- 2.000 inch
- 3.000 inch
- 4.000 inch
Thickness
- 0.250inch
- 0.250inch
- 0.375inch
- 0.375inch
- 0.500inch
- 0.630inch
- 0.250inch
- 0.250inch
- 0.375inch
- 0.375inch
- 0.500inch
- 0.630inch
- 0.250inch
- 0.250inch
- 0.375inch
- 0.375inch
- 0.500inch
- 0.630inch
- 0.250inch
- 0.250inch
- 0.375inch
- 0.375inch
- 0.500inch
- 0.630inch
Specifications
- Tolerances
- All diameters are +0.00 / -0.005 inch
- All Thicknesses are +/- .020 inch
- Side 1
- Surface roughness less than 1 Angstrom RMS (A surface profiler readout for each substrate is available for an additional cost)
- Surface flatness is better than λ/10 measured at 633nm
- Surface quality is 10/5 per MIL -O-13830A
- Side 2
- Fused Silica and BK-7: Conventionally polished laser quality plano surface.
- Surface flatness is better than λ/4 measured at 633nm
- Surface quality 40-20
- Surface roughness in not measured
- Silicon and ZerodurŪ: Fine ground
- Parallelism
- All substrates better than 3 minutes
- Clear Aperture
- Central 80%
- Marking
- All substrates marked with arrow pointing to side 1
