Metallurgical Rare Earth Metal 99.5%-99.99% Erbium (Er) Pellet CAS 7440-52-0

Another hot application of erbium is lasers, especially as a medical laser material. The Erbium laser is a solid pulse laser with a wavelength of 2,940 nm that is strongly absorbed by water molecules in human tissues to achieve greater results with less energy and can cut, grind and excise soft tissue with great precision. Erbium YAG lasers are also used for cataract extraction. Because the main component of the cataract body is water, erbium laser has low energy and is easily absorbed by water, which will be a promising surgical method for cataract removal. Erbium laser therapy apparatus is opening up more and more broad application fields for laser surgery.

Erbium can also be used as an active ion in rare earth upconversion laser materials. Erbium laser upconversion materials are divided into two categories: single product (fluoride, oxygen salt) and glass (fiber), such as erbium-doped YAP:Er3* body and Er3* doped ZBLAN fluoride (ZrF4-BaF2-LaF3-AIF3-NaF) glass fiber, and now have been put into practice. BaYF5:Yb3+, Er3* can convert infrared light into visible light, and this multi-photon up-conversion luminous material has been successfully used in night vision devices.