Germanium Optical Window

Germanium(Ge) is a core material for the 2–14μm mid-IR band, offering very high transmission, high refractive index, excellent thermal stability, and environmental adaptability for thermal imaging, industrial thermometry, vehicle night vision, lasers, and security detection. Scysgx uses high-purity single-crystal substrates, more than 260 precision-processing machines, and 65 specialist inspection instruments for closed-loop cutting, grinding, polishing, coating, and inspection. Round, square, and special-shaped windows span 1–1000mm, with flatness up toλ/20 and mid-IR antireflection, DLC, or high-laser-damage-threshold coatings, providing precise, stable mid/far-IR windows.

Infrared thermal imaging: security cameras, vehicle night vision, industrial thermometry and outdoor detection windows. Industrial monitoring: high-temperature detection, infrared spectrometers and oil/gas exploration windows. Lasers: mid-infrared protection windows and optical-path protective components. Medical: thermal diagnosis and noninvasive detection windows. Research/aviation: infrared microscopy, laboratory optics and airborne detection.

Dedicated high mid-IR transmission: 2000–14000nm (2–14μm) longwave IR with extremely low absorption/stable transmission. High index reduces component counts for better integration. Excellent heat resistance/low deformation for continuous industrial and high-power infrared operation. Ultraprecision planes: high-grade flatness λ/20, parallelism to 1″, surface quality 60-40. Circular/square/irregular customization over 1–1000mm. Infrared coatings: 3–5μm/8–12μm AR, DLC and high-laser-damage layers. Commercial/general and high-precision research/medical grades. IV. Material advantages. Broadband 2–14μm mid-IR transmission, preferred for longwave IR. High index, extremely low scatter, high contrast/sensitivity. Expansion coefficient 6.1, softening temperature 936℃, strong stability without significant thermal distortion. Knoop hardness 780, impact/wear resistance for long-term industrial/outdoor use. Chemical inertness and humidity/dust resistance maintain performance. V. Customization. Circular/square/rectangular/irregular, with steps/slots/holes/counterbores. Diameter/side length 1–1000mm, thickness 0.15–300mm, custom tolerances. Chamfers, edge grinding, ultraclean polishing/washing. Mid-IR AR, DLC, high-laser-damage-threshold and broadband AR coatings. VI. Coatings. Dedicated 3–5μm, 8–12μm and 2–12μm AR. DLC improves contamination/scratch resistance/life. High-laser-damage-threshold coatings for high-power mid-IR. Broadband 2–14μm AR improves multiband compatibility. VIII. Yasi Optical advantages. Traceable in-house cutting → milling/grinding → polishing → coating → inspection. ZYGO, parallelism and optical dimensional instruments control all parameters. Batch 1–1000mm germanium windows. One-stop shape/dimension/coating customization and optical-path support. High-reliability standards meet medical/industrial needs. Standard stock and stable custom lead times. IX. Quality. All germanium windows undergo ZYGO flatness, parallelism, optical dimensional, infrared-transmission and surface-quality tests for 100% compliance. Ultraclean ultrasonic washing and vacuum moisture-proof packaging ensure transport/long-term stability.