Towner was known for his role in the invention of the maser and the laser. In December 1953, Towner his two students completed the first device which used ammonia molecules to amplify microwave radiation. It was named maser, an acronym for "microwave amplification by stimulated emission of radiation". In 1958, Townes and Schawlow constructed a similar device using light which is known as laser. | Towner was known for his role in the invention of the maser and the laser. In December 1953, Towner his two students completed the first device which used ammonia molecules to amplify microwave radiation. It was named maser, an acronym for "microwave amplification by stimulated emission of radiation". In 1958, Townes and Schawlow constructed a similar device using light which is known as laser. |