Germanium Crystals

Germanium (Ge) crystals are widely used in optical and semiconductor applications due to their high refractive index and excellent infrared transmission (2 µm to 20 µm). Germanium has a diamond cubic crystal structure and is highly transparent in the infrared spectrum, making it ideal for use in infrared lenses, windows, and optical components in thermal imaging systems. With a high melting point (~938°C) and good mechanical strength, Ge is also used in high-performance infrared detectors, telescopes, and infrared sensors. It plays a crucial role in telecommunications, space exploration, and military applications, particularly in systems that require high-quality IR optics. Additionally, due to its semiconductor properties, Germanium is used in transistors and diodes in the electronics industry.

Explore the types we offer, tailored for specific industries and technologies

Type/Form of Germanium

        Key Applications

        Related Industries

              Key Features

High-purity single crystal

-Mid-IR optics (windows, lenses)
– FTIR spectroscopy components

– Infrared spectroscopy
– Scientific instrumentation

– Excellent transmission in mid-IR
– Very low dispersion

Optical-grade Ge

-Thermal imaging systems (infrared cameras)
– Night vision optics

– Defense
– Aerospace
– Surveillance technology

– High refractive index (~4.0)
– Good thermal stability

Polycrystalline Ge

– Cost-effective IR windows for non-critical systems

– Industrial sensing
– Low-cost thermal imagers

– Lower cost
– Good IR transparency but lower mechanical strength

✅ Available Size: Crystal Blanks of customized size

✅ Bulk and prototype orders accepted

✅ Global delivery with quality guarantee