Premium Infrared Germanium Windows | AR-Coated Options Available

Premium Infrared Germanium Windows | AR-Coated Options Available

IR window 2–14 μm

AR coated germanium window

germanium optical window

Ge window

Discover our high-performance Germanium (Ge) Windows designed for infrared and thermal imaging systems.

With excellent transmission from 2–14 μm and optional AR coatings, these Ge optical windows deliver superior clarity, stability, and durability for IR cameras, sensors, and industrial monitoring applications.

Perfect for MWIR/LWIR imaging and custom OEM solutions.

Description

Germanium (Ge) Window – High-Precision Infrared Optical Component

Germanium windows are widely used in infrared imaging, thermal cameras, and spectroscopy systems due to their high refractive index, excellent transmission in the 2–14 μm band, and mechanical stability. Our Ge windows provide exceptional flatness, low absorption, and reliable performance in demanding environmental conditions.

Key Features

Material: Optical-grade Germanium (Ge)
Wavelength Range: 2–14 μm (excellent performance in MWIR & LWIR)
Refractive Index: ~4.0 at 10.6 μm
AR Coating Options:
- 3–5 μm AR coating
- 8–12 μm AR coating
- Dual-band AR coating
Surface Quality: 40-20 / 60-40 available
Flatness: λ/4 – λ/10
Parallelism: < 3 arc minutes or customizable
Hard Carbon (DLC) protective coating optional

Applications

Thermal imaging cameras
Infrared spectrometers
Defense and surveillance systems
CO₂ laser systems
Industrial IR sensors
Environmental monitoring