A beam of light can only be seen when it hits matter particles and is scattered or reflected by them. In a vacuum, however, it is invisible. Physicists have now developed a method that allows laser beams to be visualized even under these conditions. The method makes it easier to perform the ultra-precise laser alignment required to manipulate individual atoms.
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/08/210825143048.htm
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/08/210825143048.htm
Physicists make laser beams visible in vacuum
![Physicists make laser beams visible in vacuum]()
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August 26, 2021
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