The principle is certain incentives (power injection, light or high energy electron beam injection pump), in the semiconductor material between the band or between the band and the impurity level, by stimulating non-equilibrium carriers to achieve inversion, resulting in the role of stimulated emission of light; The page-turning Blue Laser Pointer is divided into two parts.⑤ free-electron laser, which is a special type of a new laser material for the work cycle in the space orientation of the magnetic field in the free high speed electron beam, as long as the change in free electron beam speed can generate tunable coherent electromagnetic radiation, in principle, the coherent radiation spectrum from X-ray transition to the microwave region, it has a very attractive prospect.Gas lasersMedium is a gas laser, the discharge to be excited by this laser.He-Ne lasers: The most important sources of red light (632.8 nm).Carbon dioxide laser: wavelength of 10.6 μm (infrared), an important industrial laser.If you don’t use the receiver, you can put it into the 100mW laser pointer body.Carbon monoxide laser: wavelength of about 6-8 μm (infrared), only in the cooling conditions.Nitrogen laser: 337.1 nm (UV).Argon ion laser: a multiple wavelength, 457.9 nm (8%) Dian 476.5 nm (12%) Dian 488.0 nm (20%) Dian 496.5 nm (12%) Dian 501.7 nm (5%) Dian 514.5 nm (43%) (from blue to green).Helium-cadmium lasers: the most important blue light (442nm) and near-UV laser source (325nm).Krypton ion lasers: with multiple wavelengths, 350.7nm Dian Dian 482.5nm 476.2nm 356.4nm Dian Dian Dian 586.2nm 530.9nm 520.6nm Dian Dian 647.1nm (strongest) 752.5nm Dian Dian Dian 676.4nm 799.3nm (from blue to deep red light).Some receivers are used exclusively, so keep them well when you finish using the 200mW Laser Pointer.Oxygen-ion laserXenon ion laserMixed gas laser: no pure gas, but a mixture of several gases (typically argon Dian krypton, etc.).Excimer lasers: for example, KrF (248 nm) Dian XeF (351-353 nm) Dian ArF (193 nm) Dian XeCl (308 nm) Dian F2 (157 nm) (both UV).Metal vapor lasers: for example, copper vapor laser, the wavelength range between 510.6-578.2 nm. As well fortified, you can not resonant mirror.Metal halide lasers: for example, copper bromide lasers, the wavelength range between 510.6-578.2 nm. As well fortified, you can not resonant mirror.Chemical excitation laser is a special form. Inspired by the media to carry out chemical reactions. Media is a one-time use after being consumed. green laster pointer is an equipment regarding laser as direction.For high-power conditions and is ideal for military field.HCl laserIodine laserSolid-state lasersThe laser medium is a solid, working material such semiconductor laser arrays by light Dian Dian other laser light pumped to be excited. Thermal lens effect is a flaw of most solid-state lasers.Ruby laser: the world's first laser, July 7, 1960, the U.S. announced the world's young scientists Maiman's first laser from birth, this laser is a ruby laser.Nd: YAG (neodymium-doped yttrium aluminum garnet): The most commonly used solid-state laser operating wavelength is generally 1064nm, the wavelength for the four-level system, there are other levels to other wavelengths of the laser output.The directing length of 5mW laser pointer is very long.Nd: YVO4 (neodymium-doped yttrium vanadate): the most widely used low-power solid-state lasers, operating wavelength is generally 1064nm, through the KTP, LBO nonlinear crystal frequency resulting from 532nm green laser.
Yb: YAG (ytterbium-doped yttrium aluminum garnet): suitable for high power output, the laser disc of this material in a strong laser field of industrial processing advantages.