The most powerful and amazing 2000MW laser pointer

The 808nm infrared laser excitation wavelength of the green laser nonlinear crystal is used to generate 1064nm infrared, which is multiplied by the 532nm green light, which is a solid-state laser. Some green laser pointers operate in pulsed or near continuous mode to reduce cooling problems and extend battery life. It was recently announced that the frequency of the green laser needs to be doubled to increase efficiency. At night, even low-power green light can be seen by the Rayleigh scattering of atmospheric molecules. This is often used by astronomers to refer to stars and constellations. The green laser pointer can have different output power. The apparent brightness of a projector illuminated by a red, green, blue-violet or laser pointer depends not only on the laser output and surface reflectivity, but also on the color of the human eye. For example, the human eye is most sensitive to green light with a wavelength between 520 and 570 nm in the visible spectrum, which makes red or blue less sensitive, while green light of the same wattage is brighter than other colors.