Why did Theodore Harold Maiman use a synthetic rod of ruby when building a laser instead of real ruby?
(I would like a good scientific answer)
a synthetic ruby was grown in a controlled enviroment and is free from flaws and imperfections that could cause deflection in the beam. natural rubies are like diamonds, they have flaws and bits of carbon residue unless you get a flawless stone. but those are too expensive to use because they are rare.
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