Infrared Windows and Substrates

Infrared Windows and Substrates

Infrared Windows and Substrates

Andover Corporation maintains a comprehensive inventory of optical-quality infrared-transmitting substrates, all precision polished to meet demanding specifications. Available in standard 25mm and 50mm diameters, these windows can be customized with anti-reflective (AR) coatings and produced in various sizes and shapes to meet specific application requirements. Each substrate undergoes rigorous quality control to ensure optimal performance in infrared applications.

Calcium Fluoride (CaF2)

Calcium Fluoride (CaF2) has good transmission from the UV to the Mid-IR.

  • Refractive index: 1.40 at 5.0μm
  • CTE (10-6/°C): 18.9
  • Hardness (Knoop): 160

Sapphire (Al2O3)

Sapphire (Al2O3) is transparent over a wide range, and has excellent mechanical strength.

  • Refractive index: 1.737 at 2.0μm
  • CTE (10-6/°C): 7.7
  • Hardness (Knoop): 1920

Silicon (Si)

Silicon (Si) is an economical choice for many IR applications.

  • Refractive index: 3.43 at 3.0μm
  • CTE (10-6/°C): 4.15
  • Hardness (Knoop): 820

Germanium (Ge)

Germanium (Ge) is widely used for lenses and windows in the Mid-IR region.

  • Refractive index: 4.00 at 10.6μm
  • CTE (10-6/°C): 5.7
  • Hardness (Knoop): 692

Zinc Selenide (ZnSe)

Zinc Selenide (ZnSe) is widely used for lenses and windows in the Mid-

  • Superior optical quality
  • Immediate stock availability
  • Custom size options
  • AR coating capability
  • Precision polished surfaces
  • Multiple substrate choices
  • Consistent quality control
  • Cost-effective solutions
  • Flexible configurations
  • Thermal Imaging Systems
  • Weapons Systems
  • Detector Windows
  • IR Photography
  • Spectroscopy Equipment
  • Environmental Monitoring
  • Process Control
  • Defense Applications
  • Research & Development
  • Thickness: 1.0 ± 0.2mm
  • Diameter Tolerance: +0/-0.1mm
  • Surface Quality: 60/40 per MIL-C-48497A
  • Standard Sizes:
    • 25mm diameter
    • 50mm diameter
  • Customization Options:
    • AR coatings available
    • Custom sizes
    • Custom shapes
  • Quality Control:
    • Optical polishing
    • Surface inspection
    • Dimensional verification

Showing all 11 results

    PART NO.
    DESCRIPTION
    1 - 5 pcs.
    6 - 10 pcs.
    > 10 pcs.
    Stock Status

    IRWS200-12.7

    Germanium Substrate 12.7mm dia.

    $59.00
    $59.00
    $59.00
    In Stock

    IRWS100-25

    Silicon Substrate 25mm dia.

    $59.00
    $51.00
    $48.00
    In Stock

    IRWS200-25

    Germanium Substrate 25mm dia.

    $77.00
    $66.00
    $63.00
    In Stock

    IRWS300-25

    Sapphire Substrate 25mm dia.

    $59.00
    $51.00
    $48.00
    In Stock

    IRWS400-25

    IR (Water Free) Fused Silica Substrate 25mm dia.

    $35.00
    $30.00
    $29.00
    In Stock

    IRWS500-25

    Calcuim Fluoride Substrate 25mm dia.

    $255.00
    $219.00
    $209.00
    In Stock

    IRWS600-25

    Zinc Selenide Substrate 25mm dia.

    $307.00
    $264.00
    $252.00
    In Stock

    IRWS100-50

    Silicon Substrate 50mm dia.

    $188.00
    $162.00
    $154.00
    In Stock

    IRWS200-50

    Germanium Substrate 50mm dia.

    $372.00
    $320.00
    $305.00
    In Stock

    IRWS300-50

    Sapphire Substrate 50mm dia.

    $188.00
    $162.00
    $154.00
    In Stock

    IRWS400-50

    IR (Water Free) Fused Silica Substrate 50mm dia.

    $145.00
    $125.00
    $119.00
    In Stock