Alumina Ceramic Laser Cavity Reflector

The ceramic reflector body is prepared with 99% Al₂O₃, and the body is fired at an appropriate temperature to retain the appropriate porosity and the appropriate strength of the body. The surface of the reflector is fully coated with high reflectivity ceramic glaze. The biggest advantage compared with the gold-plated reflector is that it has a very long service life and the reflection characteristic is diffuse reflection.

Its main features include:

1. The surface is fully glazed for maximum reflectivity and easy to clean

2. The reflectivity reaches 97% at the wavelength of 600-1000nm

3. The reflectance exceeds 95% in the 400-1200nm spectrum range

4. The green body has proper porosity and high strength

Physical properties

Color: White

Bulk density (fired): 3.1 g/cm3

Porosity (apparent), nominal: 22%

Flexural strength (ASTM C1161, 3-point):170 MPa

Thermal expansion coefficient:

200-500℃, 7.9*10^-6/C

200-1000℃, 9.0*10^-6/C