OSA | Living History

Nonlinear optics refers to the unconventional behavior of light when it interacts with matter.

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Nonlinear Optics

Nonlinear optics (NLO) describes the interaction of intense light with matter.

Peter Franken’s second harmonic generation experiments in 1962 ignited the field. NLO is integral to multiple fields including telecommunications and spectroscopy. (Photo: U.S. Army)

(Courtesy of U.S. Army)