Material: Made from premium germanium (single crystal, polycrystalline) with double-sided coating for enhanced durability and performance. Versatile Applications: Ideal for temperature measurement, protection windows, imaging instruments, and infrared filters in various scientific and industrial . Superior Optical Performance: Excellent transmittance in the 2-14 micron wavelength band, making it perfect for mid-infrared optical components. Precision Engineering: Diameter tolerance of +0.0/-0.1mm and thickness tolerance of ±0.1mm ensures high accuracy and reliability in critical applications. Robust devise: Resistant to Gas, water, acids, and alkalis, suitable for use in harsh environments without the need for correction due to high refractive index and low chromatic aberration.