Comparison of Nd:YAG single crystals and transparent ceramics as laser materials

摘要

Spectroscopic and emission decay investigation on single crystal Nd:YAG (with up to Sat. %Nd) and transparent ceramic (up to 9at. %Nd) samples indicate that the state of Nd ions (the sites occupied by the Nd ions, the crystal field and electron-phonon interactions, energy transfer between the Nd ions) are identical. Coupled with the similarity of the thermo-mechanical properties and with specific features of ceramics, such as a high production yield, possibility to produce very large components with uniform Nd doping up to very high concentrations, reduced production cost, these studies show that the transparent ceramic Nd:YAG can be used for construction of lasers. These conclusions are supported by efficient laser emission data.