Custom Infrared (IR) Fused Silica Windows

  • Clear Aperture (%): 90
  • Parallelism (arcsec): <5
  • Substrate: Fused Silica
  • Surface Quality: 20-10

What are Infrared (IR) Fused Silica Windows?

Infrared (IR) Fused Silica Windows are high-quality optical windows made from synthetic fused silica.

They are designed for applications requiring excellent transmission in the ultraviolet (UV), visible, and infrared (IR) spectrum.

Also, these windows feature outstanding thermal and mechanical properties, making them an ideal choice for demanding optical systems and laser applications.

What is the IR Transmission of Fused Silica?

Fused silica is an excellent optical material that provides very high transmission in the UV, visible, and part of the infrared (IR) spectrum.

  • UV: ~180 nm
  • Visible: Excellent transmission
  • Infrared (IR): Typically up to about 3.5 μm (depending on grade and OH content)

Advantages of IR Fused Silica Windows

 

  • Wide Transmission Range:

Excellent transmission from UV (180 nm) to infrared (~3.5 μm), covering multiple wavelengths.

  • Low Thermal Expansion:

Superior thermal stability ensures minimal distortion under high-temperature conditions.

  • High Laser Damage Threshold:

Suitable for high-power laser systems due to its exceptional resistance to laser-induced damage.

  • Excellent Surface Quality:

Precision-polished surfaces reduce scattering and enhance image clarity.

  • Durability:

Resistant to most chemicals and environmental influences, ensuring long service life.

Why choose Fused Silica Window?

It has high transmittance and low absorption rate over a wide wavelength range.

At the same time, it can still maintain stable performance under extreme environments and high temperatures.

 

Moreover, our experienced design team provides customers with support for optical system design, ranging from the initial design stage to prototype development and production.

Also, the customization options may include specific coating wavelengths or other requirements to meet the unique needs of the customer’s application.

Therefore, if you need it, please contact us at any time.