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Germanium (Ge)

Key Properties

Transmission Range: 2 - 14 μm
Refractive Index: 4.0026 at 10.6 μm
Density: 5.323 g/cm3
Knoop Hardness: 780 kg/mm2

About Germanium (Ge)

Germanium is a high-refractive-index semiconductor material extensively used in long-wave infrared (LWIR) imaging systems. With excellent transmission from 2 to 14 μm and a refractive index of approximately 4.0, Germanium is ideal for thermal imaging lenses, infrared windows, and optical systems requiring minimal chromatic aberration.

Common Applications

Thermal imaging lensesInfrared camera systemsForward-looking infrared (FLIR)Night vision systemsAutomotive thermal sensorsGas analysis systemsInfrared spectroscopy

Germanium (Ge) Products