
Germanium (Ge) Windows
Germanium (Ge) Windows
TECHSPEC® Germanium (Ge) Windows are available off-the-shelf with three anti-reflection coating options: 3 - 5μm for mid-infrared applications, 3 - 12μm for broadband multispectral applications, or 8 - 12μm for thermal imaging applications. Due to its high index of refraction (around 4.0 from 2 - 14μm), an anti-reflection coating is recommended on these germanium windows for sufficient transmission in the region of interest. 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. Germanium’s high density (5.33 g/cm3) 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.
Title | Compare | Stock Number | Price | Buy | |
---|---|---|---|---|---|
![]() |
12.5/12.7mm Optic Dia., Precision Gimbal Mount | #84-640 |
$346.00
Qty 5+ $311.50 Request a Quote |
|
|
![]() |
8.0 - 118.0 Optic Height, English Bar-Type Optic Holder | #03-666 |
$95.25
Qty 10+ $85.75 Request a Quote |
|
|
![]() |
7.0 - 67.0 Optic Height, English Bar-Type Optic Holder | #03-669 |
$91.25
Qty 10+ $82.25 Request a Quote |
|
|
![]() |
7.0 - 40.0 Optic Height, English Bar-Type Optic Holder | #03-676 |
$85.00
Qty 10+ $76.50 Request a Quote |
|
|
![]() |
5.0 - 25.0mm Optic Height, Metric Bar-Type Optic Holder | #55-529 |
$85.00
Qty 10+ $76.50 Request a Quote |
|
|
![]() |
10.0 - 60.0mm Optic Height, Metric Bar-Type Optic Holder | #55-530 |
$91.25
Qty 10+ $82.25 Request a Quote |
|
|
![]() |
2.0 - 35.0mm Optic Dia., Three-Screw Adjustable Ring Mount | #03-668 |
$51.00
Qty 10+ $46.00 Request a Quote |
|
|
![]() |
9.5 - 73.0mm Optic Dia., Three-Screw Adjustable Ring Mount | #36-605 |
$63.75
Qty 10+ $57.50 Request a Quote |
|
|
![]() |
12.5/12.7mm Optic Dia., X-Y Translating Optic Mount | #62-955 |
$212.50
Qty 5+ $201.75 Request a Quote |
|
|
![]() |
12.5/12.7mm Optic Dia., X-Y-Z Translating Optic Mount | #62-958 |
$350.00
Qty 5+ $332.50 Request a Quote |
|
|
![]() |
4.0 - 36.0mm Optic Dia., Self-Centering Jaw Clamp |
#16-077
New
|
$130.00
Qty 5+ $117.00 Request a Quote |
|
|
![]() |
5.0 - 100.0mm Optic Dia., Self-Centering Jaw Clamp |
#16-078
New
|
$340.00
Qty 5+ $306.00 Request a Quote |
|