Silicon Substrate Gold Mirror

Key Features:

  1. Excellent Thermal Stability:
    • Thermal Performance: Silicon substrate offers superior thermal stability, making these mirrors ideal for applications that experience temperature fluctuations or require consistent performance in varying thermal conditions.
  2. Ideal for Weight Sensitive Applications:
    • Low Density: With a density of 2.329 g/cm³, silicon is significantly lighter than traditional glass, making it perfect for weight-sensitive applications such as aerospace, portable devices, and heads-up displays (HUDs).
  3. Increased Durability over Glass Substrate Mirrors:
    • Durability: Silicon substrate provides enhanced durability compared to glass, reducing the risk of breakage and extending the lifespan of the mirrors.




Product Specification:

  • Diameter (mm): 12.50 +0.0/-0.1
  • Surface Flatness (P-V):
  • Substrate: Silicon (Si)
  • Back Surface: Commercial Polish
  • Surface Quality: 60-40
  • Coating: Protected Gold (700-2000nm)
  • Coating Specification:
    • R<sub>avg</sub> >97% @ 800 – 2000nm
    • R<sub>avg</sub> >94% @ 700 – 800nm
  • Clear Aperture (%): 90.00
  • Thickness (mm): 2.00 ±0.1
  • Thickness Tolerance (mm): ±0.1
  • Type: Flat Mirror
  • Wavelength Range (nm): 700 – 2000
  • Damage Threshold, Reference: 0.8 J/cm² @ 1064nm, 10ns

For further assistance with customization or to place an order, please visit our online store or contact our sales team.

Optical Properties:

  1. High Reflectivity:
    • Protected Gold Coating: The mirrors feature a protected gold metallic coating, providing an average reflectivity greater than 97% across the near-infrared (NIR) and infrared (IR) regions.
    • Reflective Range: Ideal for applications operating in the NIR and IR wavelengths, ensuring high performance and efficiency.
  2. Enhanced Performance:
    • Optical Quality: The combination of silicon substrate and gold coating ensures high optical quality, minimal distortion, and consistent reflectivity.


  1. Aerospace and Defense:
    • Heads-Up Displays (HUDs): Perfect for integration into HUDs where weight savings and thermal stability are crucial.
    • Optical Systems: Used in various optical systems within aerospace and defense sectors requiring durable and lightweight mirrors.
  2. Scientific and Industrial:
    • Laser Systems: Suitable for laser applications needing high reflectivity and thermal stability in the NIR and IR regions.
    • Precision Instruments: Employed in scientific instruments requiring precise and stable optical components.
  3. Medical Devices:
    • Imaging Systems: Utilized in medical imaging devices that benefit from lightweight, durable mirrors with high reflectivity.
  4. Environmental Monitoring:
    • Sensor Systems: Ideal for use in environmental monitoring sensors that operate in the NIR and IR regions, providing reliable and consistent performance.

SHAPEOPTICS Silicon Substrate Gold Mirrors are a superior choice for weight-sensitive and thermally stable applications. Their increased durability over traditional glass substrate mirrors, combined with high reflectivity from the protected gold coating, makes them ideal for a wide range of high-performance optical systems. Whether in aerospace, defense, scientific research, or medical devices, these mirrors provide reliable, efficient, and robust solutions for critical optical applications.

Additional information

Weight 0.5 kg
Dimensions 12 × 10 × 8 cm


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