RE: Nice rise today2 Oct 2025 09:31
From ChatGPT - Here’s how (Germanium is) used in defense:
🔹 Infrared Optics & Sensors
• Germanium is transparent to infrared light (2–14 µm range), making it ideal for thermal imaging systems.
• Used in night-vision goggles, rifle scopes, thermal weapon sights, and vehicle-mounted imaging systems.
• Critical for guided missiles and target acquisition systems, where IR cameras track heat signatures.
🔹 Aerospace & Satellites
• Germanium substrates are used in high-efficiency solar cells for satellites and military spacecraft.
• Space-based infrared sensors for missile warning and surveillance often use germanium optics.
🔹 Communications
• Germanium-doped fiber optics can be used for secure military communications with low signal loss.
Because of these roles, germanium is classified as a strategic and critical material by many governments (including the U.S. and EU). China is one of the world’s top suppliers, so availability is often tied to geopolitical security concerns.
👉 germanium is very much used in defense and national security technologies.