A laser pointer that can emit three beams?

Since YAG crystals easily absorb wavelengths around 808 nm, they will oscillate by applying energy using semiconductor lasers of this wavelength. When it passes through crystal 2, the wavelength is halved and becomes green light. Crystal 2 is a special kind of crystal called nonlinear optical crystal. For relatively low outputs, such as those used for laser pointers, use crystal 1 and crystal 2 glued together. The laser allows you to perform additional LGT, optical, electronic, and conductivity experiments in a timely manner. These experiments can provide insight into intensity and tonnage. Recognize books with category areas and outdated text content, which are more effective and boring than roads.