Laser - Charles Hard Townes and Arthur Leonard Schawlow began a serious study of the infrared laser

Time: 1957

Place: U.S.

Details: In 1957, Charles Hard Townes and Arthur Leonard Schawlow, then at Bell Labs, began a serious study of the infrared laser. As ideas developed, they abandoned infrared radiation to instead concentrate upon visible light. The concept originally was called an "optical maser".

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