click me!

Silicon (Si) Mirrors for CO2-laser


Inquire Us  

Specifications:

Materials  Silicon (Si) Density 2.33 g/cm3
Surface Quality 40/20 S/D (MIL-PRF-13830B) Clear Aperture >80% of full dimension
Dimensional Tolerance +0.0 -0.2 mm Thickness Tolerance ±0.25 mm
Surface Flatness λ/4 @ 633nm Operation Wavelength 10.6 µm
Coating protected gold Reflectivity for Unpolarized Radiation >99%
Laser Damage Threshold 4 kW for Ø 10 mm
 

Modules or Types:

Following modules and types of the Molybdenum mirrors are available in stock:

Diameter (mm) Thickness(mm) Substrate Materials Reflections at 10.6μm
12 3 Monocrystalline Silicon R≥99% at λ=10.6μm
18 3 Monocrystalline Silicon R≥99% at λ=10.6μm
19 3 Monocrystalline Silicon R≥99% at λ=10.6μm
20 3 Monocrystalline Silicon R≥99% at λ=10.6μm
25 3 Monocrystalline Silicon R≥99% at λ=10.6μm
25.4 3 Monocrystalline Silicon R≥99% at λ=10.6μm
30 3 Monocrystalline Silicon R≥99% at λ=10.6μm
38.1 5 Monocrystalline Silicon R≥99% at λ=10.6μm
50.8 7 Monocrystalline Silicon R≥99% at λ=10.6μm
200 15 Monocrystalline Silicon R≥99% at λ=10.6μm

Mirror is an important component in laser processing optical path system, which would reflect light in accordance with the predetermined route and direction. Coated silicon substrates are commonly used as mirrors for CO2 lasers. Its advantages are good durability, thermal stability and relatively low cost. The total reflectors are used as rear reflectors and fold mirrors and externally as beam benders. Silicon mirrors tend to be used by lower power CO2 lasers as flat fold mirrors, and in clean conditions where back spatter and dust will not cause catastrophic failure of the mirrors. Typically a Silicon mirror has 1/10th of the laser damage resistance of a copper based mirror.