Yttriumalumiiniitriittikiteitä

Yttriumalumiiniitriittikiteitä is the Finnish term for yttrium aluminum garnet (YAG) crystals. YAG is a synthetic crystalline material with the chemical formula Y₃Al₅O₁₂. It is a transparent, hard, and refractory substance that exhibits excellent optical and physical properties.

These crystals are widely used as a host material for various dopants, which impart specific luminescence or laser properties. For instance, neodymium-doped YAG (Nd:YAG) is a well-known laser medium used in solid-state lasers for applications ranging from industrial cutting and welding to medical procedures and scientific research. Other dopants, such as erbium or ytterbium, are also employed to create lasers operating at different wavelengths.

Beyond lasers, YAG crystals find applications as phosphors in lighting and display technologies, and as scintillators for detecting ionizing radiation. Their high refractive index, low optical loss, and resistance to thermal shock make them advantageous in optical components. YAG crystals are typically grown using techniques like the Czochralski method, which involves pulling a crystal from a molten solution. The controlled growth process allows for precise control over the crystal's purity, size, and dopant concentration, tailoring its properties for specific end-uses.