Precautions for buying a powerful laser pointer from Wallis Lucy's blog

This technical genius built it all in one hand. A miracle found in the video. The YouTube user used a robot toy on which he placed a 2W laser, which is a very powerful accessory used in the industrial field. Remotely controlled, this machine can burn paper and even explode inflated balloons. As the boy said, this laser can also cause great damage to the eyes, so you must wear appropriate glasses when using it. Laser pointer Green is the laser pointer color of choice for astronomy, because green is the most obvious green laser pointer color. Green is more pronounced because human eyes are more sensitive to green light. Another reason is the influence of light in the earth’s atmosphere: when the atmosphere expands, the light in the sky is visible, and low wavelengths are more dispersed than high wavelengths. Green is a medium wavelength, so it spreads more and more clearly than red and other long wavelengths.

The authorities hope that the billboards in the city and 12 other metropolitan areas across the country will attract the public's attention. Public service announcements are also broadcast on the Clear Channel radio station. A federal law passed in 2012 made it a crime for non-radiation laser pointers on aircraft in service. According to Texas law, this sentence is imprisonment for five years and a fine of US$250,000 in June. Lighting a plane with a 200 MW red laser pointer is a Class A misdemeanor, with a maximum penalty of imprisonment and/or a fine of US$4,000.

Generally, plasma oscillations are excited by a single pulse of a very high-intensity blue laser pointer, but theoretically it has been shown that large plasma oscillations can also be driven by a series of low-intensity pulses. This will allow the use of desktop lasers for plasma acceleration instead of using a nationwide facility. In this context, the L4A group focused on developing a laser suitable for driving plasma oscillation through a series of laser pulses to build a 1 GeV electron accelerator operating at 1 kHz.