DOCERAM Ultimate Ceramic Co.,Ltd.

Ceramic reflectors are recently used in laser pump chambers. Its main advantages are long life time. Description A porous alumina ceramic of 99.7% Al2O3 content, used extensively for long-life laser reflectors. This material is sintered at high temperatures to achieve a controlled porosity. Prime features Surfaces can be sealed and coated with a solarization-resistant glaze to give high bulk refectivity 97.8% reflectance efficiency at 1000nm Reflectance efficiency exceeds 96% across the wavelength range 500-2000nm (see curve) Controlled porosity Good thermal conductivity High electrical resistivity Typical applications Pumping chambers for ND: YAG lasers _ low to high power, single or multiple lamp designs. Pumping chamber reflectors of this material are virtually indestructible, and prove a highly cost effective alternative to metal coated types. Specifications Quality Assurance to BS EN 9001: 2000 Production capabilities Components up to 250mm long and 80mm wide/diameter manufactured as standard Larger components manufactured to development contracts One-piece or split-cavity designs Prototype, batch and volume production. Physical properties* Color: White Bulk density (fired), Mg/m3: 3.2 Porosity (apparent), % nominal: 20 Flexural strength (ASTM C1161, 3-point), MPa: 150 Thermal expansion coefficient 200-500C, 10-6/C 7.9 200-1000C, 10-6/C 9.0