High-Performance Germanium Windows

  • Uncoated or with AR Coatings Designed for a Variety of IR Ranges
  • Minimal Chromatic Aberration Due to Low Dispersion
  • Ideal for Infrared Applications Requiring Rugged Optics

High-Performance Germanium Windows

Germanium windows are widely used in infrared (IR) optical applications due to their exceptional performance in the mid-wave infrared (MWIR) and long-wave infrared (LWIR) ranges. These high-performance Germanium optical windows offer excellent transmission and durability, making them ideal for thermal imaging, spectroscopy, and other critical IR systems. With their low absorption and high refractive index, Germanium windows provide high clarity and reliability, even under challenging environmental conditions. Available in custom sizes and shapes, they are a perfect choice for demanding optical applications.

General specification

Wavelength range: 2-16µm Coating: Uncoated
Diameter tolerance: ±0.2mm Surface Quality: 60/40
Thickness tolerance: ±0.1mm Paralellism: <1 arc minute
Clear Aperture: 90% Density: 5.33g/cm3
Melting point: 938.2ºC Young’s Modulus(GPa): 102.7
Coefficient of Thermal Expansion: 5.9 x 10-6/°C Knoop Hardness: 780kg/mm2