Safety instructions for high-power laser pointers
This technique reversibly extends ultrashort pulses from the oscillator by their wide spectral width. Thanks to the diffraction grating, each spectral component of the pulse (each "color") is separated and traverses a path of different length, and then recombined into the same beam using a second grating. .. In this way, a pulse stretched by 1000 times is obtained, which can pass through the amplifier without damaging the amplifier, so as to achieve the required energy of several joules or more per pulse. Why should we deal with this particular accident? Lasers are inherently dangerous, but they are not at the end of this range.
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The main use of lasers in astronomy and starry sky observation is to help identify constellations, stars and planets. Although complaints from federal authorities have increased, the aircraft claimed to be the target of illegal and irresponsible permit holders. Laser pointers are becoming more and more popular among astronomy enthusiasts. Astronomers all over the world add high-power lasers to their toolboxes, so I think I will spend time usinghigh powered laser pointers to provide safety instructions.
2021-11-30 11:58:10
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