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22 March 1960: laser, a brilliant invention

This week will mark the 62nd anniversary of the patenting of the laser by two American researchers. This article will try to shed some light on this invention.   A PROJECT COOKED UP WITH A MICROWAVE Charles Townes was 44 when, on the 22nd of March 1960, together with his brother-in-law Arthur Schawlow, he filed a patent which, although it was to reshape industry and the world in general, was the result of research work started nearly twenty years earlier. It was during World War II