The Nature of Invention 🔬 on Twitter: "60 years ago today, on March 22, 1960, American 🇺🇸 physicists Arthur Schawlow (1921-1999) & Charles Townes (1915-2015) received their #patent 🔻for the maser. Both
Are there lasers that emits non-visible light, such as radiowaves, microwaves, X-Ray, or any other type of electro-magnetic waves? - Quora
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Diamond maser construction The diamond was placed inside the sapphire... | Download Scientific Diagram
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