About Germanium Windows
Germanium Windows are available with three anti-reflection coating options, 3 - 5μm for mid-infrared applications, 3 - 12μm for
broadband multispectral applications, and 8 - 12μm for thermal imaging applications.
VY Optics also supply precision windows fabricated from several other substrates for use in a large variety of laser and
industrial applications.
Germanium Windows are available with three anti-reflection coating options, 3 - 5μm for mid-infrared applications, 3 - 12μm for
broadband multispectral applications, and 8 - 12μm for thermal imaging applications.
Due to its high index of refraction, an anti-reflection coating is recommended on these ge windows for sufficient transmission.
Germanium is subject to thermal runaway, meaning that the transmission decreases as temperature increases. As such, these
germanium windows should be used at temperatures below 100°C. High density (5.33 g/cm3) of germanium should be considered when designing for weight-sensitive systems. The Knoop Hardness of germanium (780) is approximately twice that of magnesium fluoride, making it ideal for infrared applications requiring rugged optics.
Property of Germanium
Specifications of our Germanium Windows
Germanium is subject to thermal runaway, meaning that the transmission decreases as temperature increases. As such, these
germanium windows should be used at temperatures below 100°C. High density (5.33 g/cm3) of germanium should be considered when designing for weight-sensitive systems. The Knoop Hardness of germanium (780) is approximately twice that of magnesium fluoride, making it ideal for infrared applications requiring rugged optics.
Property of Germanium
Specifications of our Germanium Windows
| Material | Ge, Si, CaF2,ZnSe, ZnS, LN, LT etc. |
| Diameter | 3mm - 460mm |
| Thickness | 0.15mm - 30mm |
| Dia. Tolerance | +0.01, -0.01 mm |
| Surface Quality | 10-5 |
VY Optics also supply precision windows fabricated from several other substrates for use in a large variety of laser and
industrial applications.
