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Germanium (Ge) Windows

  • Stocked Germanium windows
  • Maximum diameter 300mm
  • Broad wavelength range covers 2μm to 16μm
  • Coating options: DLC coating, AR@3-5μm, AR@8-12μm, BBAR@3-12μm
Inquire for custom product  
Code Material Diameter Thickness Coating Unit Price Delivery Cart
320-001 Ge 10mm 2mm AR/AR $33.0 2 weeks
320-002 Ge 12mm 1mm AR/DLC $30.0 2 weeks
320-003 Ge 12mm 1mm AR/AR $29.0 2 weeks
320-005 Ge 18mm 1mm AR/DLC $38.0 1 week
320-006 Ge 20mm 1mm AR/DLC $40.0 2 weeks
320-007 Ge 25.4mm 1mm Uncoated $46.0 1 week
320-008 Ge 25.4mm 1mm AR/DLC $50.0 1 week
320-009 Ge 29mm 2mm AR/DLC $61.5 30 Days
320-010 Ge 33mm 1mm AR/DLC $55.0 30 Days
320-011 Ge 50.8mm 3mm AR/DLC $118.0 1 week
320-012 Ge 52mm 3mm AR/DLC $120.0 1 week
320-013 Ge 60mm 2mm AR/DLC $130.0 1 week
320-014 Ge 60mm 3mm AR/DLC $169.0 1 week
320-015 Ge 65mm 3mm AR/DLC $190.0 1 week
320-016 Ge 70mm 3mm AR/DLC $210.0 1 week
320-017 Ge 76mm 3mm AR/DLC $260.0 30 Days
320-018 Ge 80mm 3mm AR/DLC $270.0 1 week
320-019 Ge 85mm 3mm AR/DLC $295.0 30 Days
320-020 Ge 91.8mm 3mm AR/DLC $340.0 1 week
320-021 Ge 100mm 4mm AR/DLC $510.0 30 Days
320-022 Ge 101.6mm 1mm AR/DLC $200 1 week
320-023 Ge 101.6mm 4mm AR/DLC $520.0 30 Days

Germanium windows are ideal for infrared spectrum applications for its broad transmission range and opacity in the visible portion of the spectrum. Germanium is commonly used in infrared (IR) thermal imaging systems typically operating in the 2 µm to 14 µm spectral range, covers both the Long Wavelength Infrared (LWIR) of 8-12μm and Medium Wavelength Infrared (MWIR) of 3-5μm thermal imaging spectrum. Germanium windows can be AR coated of hard carbon or diamond types, which produce an extremely tough front optics and fit for harsh environmental applications, Ge windows is more rugged than other infrared (IR) materials,  it is often used as the protective windows for thermal cameras.  But germanium would begin to become opaque in IR spectrum when temperature rise above 90℃, one should take caution when it is used in high temperature applications, you should consider to use Zinc Selenide (ZnSe) or Zinc Sulfide (ZnS) materials in such high temperature applications. 

Hangzhou Shalom EO offers both off-the-shelf and custom germanium windows, with maximum diameter 300mm and coating options of DLC, AR@3-5 micro and AR@8-12 micro and BBAR@3-12 micro, every pieces of Ge windows are inspected strictly by our quality control inspector under ISO9001 QC management system.  

Germanium(Ge) Windows D12x1mm with AR/AR Coating

Germanium(Ge) Windows D12x1mm with AR/AR Coating

Germanium(Ge) windows D60x2mm with AR/DLC coating

Germanium(Ge) windows D60x2mm with AR/DLC coating

Germanium(Ge) windows D20x1mm with AR/DLC coating

Germanium(Ge) windows D20x1mm with AR/DLC coating