Description
Gold Mirrors – Broadband Infrared Reflectivity for Thermal & Laser Applications
Description:
Gold Mirrors are protected metallic mirrors with a gold reflective layer, which provides exceptionally high reflectivity (>96%) across the near-infrared (NIR) to mid-infrared (MIR) spectrum (700nm – 10µm). The gold layer is protected by a durable dielectric overcoat (SiO₂) to prevent tarnishing and improve scratch resistance, making them ideal for infrared lasers, thermal imaging, and spectroscopy.
Materials:
BK7: Standard substrate for general IR applications
Fused Silica: High thermal stability and laser damage resistance for high-power IR lasers
Sapphire: Extreme hardness and thermal conductivity for harsh industrial environments
ZnSe / Ge: IR-transparent substrates for MIR applications (optional)
Features:
Broadband high reflectivity in NIR-MIR spectrum
Protective SiO₂ overcoat for long-term durability
Low scatter and high surface finish
Good thermal conductivity to dissipate heat
Compatibility with high-power IR lasers
Key Specifications:
Diameter: 10mm – 300mm
Surface Quality: 60/40, 40/20, 20/10
Surface Figure: λ/4 @ 633nm, λ/10 @ 633nm
Reflectivity: >96% at 1µm – 10µm
Coating: Protected gold (Au + SiO₂ overcoat)
Applications:
CO₂ lasers & fiber laser systems Thermal imaging cameras & infrared sensors Medical IR devices & laser therapy IR spectroscopy & gas analysis systems Aerospace & military IR optics Custom service: Custom size, substrate material, and edge treatment options are available. We can also produce gold mirrors with custom mounting features for integration into optical assemblies.
