Introduction of laser working materials
Laser working material refers to the material system used to realize the inversion of the number of particles and generate the amplified effect of stimulated radiation of light. It is sometimes called the laser gain medium. They can be solid (crystal, glass), gas (atomic gas, ionic gas) , Molecular gases), semiconductors and liquids. The main requirement for the laser working substance is to achieve a large degree of particle inversion between the specific energy levels of its working particles as much as possible, and to maintain this inversion as effectively as possible throughout the laser emission process; To this end, the working substance is required to have an appropriate energy level structure and transition characteristics.