Silicon Mirrors

Custom Silicon Mirror Solutions

Silicon is the perfect material for low-power CO2 lasers. This is because of its notably low coefficient of linear thermal expansion, coupled with its gradual increment as the temperature rises.

Additionally, it’s possible to polish silicon on a large scale and add multiple dielectric coatings to improve its reflectance and phase shift properties significantly.

Why silicon mirrors?

  • Low cost: Silicon is one of the most abundant elements on Earth, readily available for use, making it cost-effective to source. 
  • Outstanding thermal stability: The well-organized crystalline lattice structure of silicon contributes to its excellent thermal stability. 
  • Great for weight-sensitive applications: The inherent lightweight composition of silicon and low density make it well-suited for weight-sensitive applications. 
  • Low thermal conductivity: The strong covalent bonds and atomic arrangement in its crystalline structure impart the low conductivity of the material. 
  • Superior durability: The robust material properties of silicon, such as excellent thermal stability and chemical inertness, contribute to the durability of the silicon mirrors. This makes them resistant to environments such as oxidation, corrosion, and UV radiation. In terms of durability, the material is superior to glass substrate mirrors.

Lattices Materials has years of expertise in developing and delivering high-quality silicon mirrors that suit your requirements. We supply materials that match your specifications and exceptionally perform in your desired applications.


Material: Silicon (Si)

Moh’s Hardness: 7

Surface Quality: 40-20

Wavelength range: 700-2000

Damage threshold: 0.8 J/cm2 @ 1064nm, 10ns.

Melting Point: 1412°C

Absorption Coefficient @25℃: 0.027 to 0.040 (varies with resistivity)

Applications of Silicon Mirrors

Silicon mirrors are a preferred choice in galvanometer systems because they are lighter than copper mirrors. This material is also easy to machine, offering customization options, and it comes in sizes up to 440mm in diameter, providing a wide range of choices.

The exceptional thermal stability of the lightweight silicon substrate renders these optical mirrors a superb choice for applications that function in the near-infrared or infrared regions.

The range of applications of silicon mirrors includes:

  • Low-power CO2 laser system
  • Heads-up displays
  • Optical systems
  • Spectroscopy
  • Photonic chips
  • Low-cost reflectors
  • Metrology applications

Working with silicon, a brittle and glass-like material, presents substantial challenges when it comes to crafting intricate parts. However, Lattice Materials overcomes this challenge by employing specialized tools and advanced CNC milling processes to craft intricate designs tailored to your specific application requirements—a feat that sets us apart from others in the industry.

Become part of the community of forward-thinkers who rely on Lattice Materials for their optical solutions needs.

Advanced Fabrication for Precision

The high-throughput applications and performance enhancement of devices require the use of silicon mirrors developed with exceptional consistency, quality, and accuracy. 

As your reliable provider of silicon optical solutions, we specialize in delivering state-of-the-art silicon mirrors that are tailored precisely to your unique specifications. Our commitment to precision ensures that we meet the highest optical standards, making us your trusted partner for even the most challenging optical demands.

Whether you need simple silicon mirrors or those fabricated with intricate shapes and features, our optics solutions meet your exact specifications, ensuring timely delivery for even bulk orders.

Reach out to us with your project specifications and get a quote for silicon mirrors manufactured by experts with high precision for superior performance in your applications.

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