Learn how a Ruby Laser Works in this educational video from dizzo95.
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Male Speaker: At the core of the ruby laser is a bar of synthetic ruby at each end of the bar is a mirror one of which is transparent enough to allow light to pass coiled around the bar is a flash lamp ordinary light is include here with many wave lengths moving in different directions a laser generates coherent light which means its waves move in unison at the same wavelength a light of singular intensity and power. How coherent light is produced begins at the atomic level when light is flashed into a ruby rod it stimulates the rubies atoms sending its electrons to a higher energy level. As the light rays balance between the mirrors at each end more and more atoms are stimulated when the electrons of the ruby atoms return to their natural energy state almost at the same time they release a host of photons of a single wavelength that emerges through the parsley transparent mirror in a beam of coherent light.
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