A brief introduction of green laser pointer

Rare earth in the laser crystal laser crystal is composed of the crystal matrix and the active ion. Laser crystal laser performance and crystal matrix, activation of the ion features a great relationship. Known laser crystal can be roughly divided into fluoride crystals, the three categories of oxysalt crystal and oxide crystals. Active ions can be divided into transition metal ions, rare earth ions and actinide ions. Known for about 320 kinds of laser crystal, about 290 kinds of mixed rare earth as the active ion. Seen rare earth an important role in the development of the laser crystal materials. The customer wants to take some pictures for this kind of green laser pointer .
11 trivalent ion Ce, Pr, Nd, Sm, Eu and Tb, Dy and Ho, and Er and Tm, and Yb, and Sm, Dy and Tm three divalent ions in the rare earth elements in the laser output. The laser properties of rare earth is generated due to the 4f electrons of rare earth ions in the transition between different energy levels. As many rare earth ions have abundant energy levels and transitions of 4f electrons, the rare earth become indispensable for the activation of ions in the laser crystal, high-tech superior performance of high power LD pumped, tunable wavelength rare earth-doped laser crystals. High-power rare earth-doped laser crystals there is a neodymium doped yttrium aluminum garnet (Nd: YAG), neodymium-doped aluminum acid yttrium (Nd: YAP), aluminum doped gadolinium the Jia garnet (Nd: GGG) and neodymium-doped aluminum magnesium lanthanum ( Nd: LMA). The battery of this kind of led flash light has the leakage-proof design.
Among them, the Nd: YAG, the most important and most widely, the largest amount. Countries have already put into production in the United States of Nd: YAG crystal has been the commercialization of new product quality and stability, and occupy the international most of the market. Tunable laser crystal is equally compelling. Ce ions broadband transitions from the Ce: YLF and Ce: of LaF3 crystal tunable UV laser. Currently the most effective and tunable UV laser crystal Ce: LiCAF, Ce: LiSAF. For LD-pumped laser crystal Nd: YVO 4, Nd: YAG and Nd: YLF, etc., other suitable pump crystal there of Yb: YAG and so on. China's YVO 4, Nd: YVO 4 crystal have been renowned international market, it is estimated that 1/3 of its products now account for the international market. The material acceptance of green laser pointer should be in accordance with the stipulation.
The rare earth active ion Nd ions, it is an output wavelength of 1.06μm. Over the years people have been carrying out exploratory work of the new wavelength of the laser crystal. One of the more successful and practical application of Er and Ho laser crystal. These crystals the output wavelength eye-safe, atmospheric transport, battlefield smoke penetration ability, confidentiality, suitable for military use. And the wavelength easily absorbed by water is more suitable for laser medical treatment, in terms of surface dehydration and biological engineering, will also receive applications. Our ability to Ho: Cr: Tm: YAG and Er: YAG and Ho: Er: Tm: YLF has a small batch trial, but the end of the formation of bulk products. It is a brief introduction of green laser pointer .
Prospects for the development of rare earth rare earth in the crystal Nd: YAG crystal with good optical homogeneity, high mechanical strength, stable physical and chemical properties, high thermal conductivity, good laser performance and mature growth technology advantages. It is because of the Nd: YAG crystal with the excellent performance and can be at room temperature, pulse and continuous operation of a variety of ways, so it is widely used in military, industrial and medical, is the solid-state laser the largest amount of laser crystal material. In the military aspects of Nd: YAG crystal is the most widely used solid-state laser working substance, is the backbone of the military solid-state laser technology. More than 90 percent of military solid-state lasers based on Nd: YAG laser crystal as the working substance. The common laser ray color of  green laser pointer  contains green, red and blue.