High Reflectivity Alumina Ceramic Cavity Laser Reflectors

Alumina Ceramic Cavity Laser Reflectors Introductions : High purity porous alumina ceramic of 99% Al2O3 content, used extensively for long-life laser reflectors. This material is sintered at high temperatures to achieve a controlled porosity. Ceramic Reflector Prime Features: > Surfaces can be sealed and coated with a solarization-resistant glaze to give high bulk refectivity > 97% reflectance efficiency at 600-1000nm > Reflectance efficiency exceeds 95% across the wavelength range 400-1200nm (see curve) > Controlled porosity > Good thermal conductivity > High electrical resistivity Ceramic Cavity Laser Reflectors Physical properties: > Color: White > Bulk density (fired), Mg/m3 :3.1 > Porosity (apparent), % nominal :22 > Flexural strength (ASTM C1161, 3-point), MPa :170 > Thermal expansion coefficient 200-500C, 10-6 /C 7.9 200-1000C, 10-6 /C 9.0

The material of ceramic reflector is 99% Al2O3.Its green body is fired at a suitable temperature to retain the proper porosity and strength. The surface of the ceramic reflector is coated with a high reflectivity ceramic glaze ,so compared with the gold-plated reflector , its has long service life and diffuse reflection. Prime Features: - Surfaces can be sealed and coated with a solarization-resistant glaze to give high bulk refectivity - 98% reflectance efficiency at 600-1000nm - Reflectance efficiency exceeds 96% across the wavelength range 400-1200nm (see curve) - Controlled porosity, Good thermal conductivity, High electrical resistivity. Physical Characteristics: - Color: White - Density: 3.1Mg/m^3 - Porosity: 22% - Flexural strength: 170Mpa - Coefficient of thermal expansion: 7.9×10^-6--/С (200～500℃) 9×10^-6/С (200～1000℃)

Ceramic reflectors supplied by us work particularly well in Ruby and Nd:YAG laser pumping chambers and can be a highly cost effective alternative to metal coated reflectors. They are also used extensively as reflectors in housings for high intensity lamps. > resists chemical attack > has high strength > has a high reflectivity over a broad wavelength band > has good thermal conductivity and > excellent dimensional and electrical stability at all operating temperatures. Specification: - - BAB192 (TCT97, BAB349) - - Material: 99% Alumina - - Specification: Φ31.00xΦ12.00x97.00 - - Application: welding, cutting, marking and in medical lasers (2) Single lamp and single rod - - Ceramic reflector TCT117 used - - Matchable YAG rods: φ(3-7)x140mm or longer - - Matchable lamps: ST256 (maximum OD is 8mm, overall length >270mm.) - - Suitable for 80W to 150W YAG lasers - - Dimension: 260x55x40mm

Alumina ceramic (Aluminum Oxide or Al2O3) is an excellent electrical insulator and one of the most widely used advanced ceramic materials. In addition, it is extremely resistant to wear and corrosion and is an industrial ceramic that can only be formed by diamond grinding. The melting point is very high at 2,072°C, and it is very hard. Alumina components can be widely used in electronics, pump components and automotive sensors.