A New Low for Nonlinear Optics

Science  11 Oct 2002:
Vol. 298, Issue 5592, pp. 373-375
DOI: 10.1126/science.1078098

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Thanks to a series of scientific breakthroughs over the last few decades, nonlinear optics are today used in many applications, from materials science to remote sensing of gases. In his Perspective, Downer highlights another such breakthrough: The report of Benabid et al., who show how the nonlinear optics of molecular gases can be exploited for laser frequency conversion by using a long hollow-core photonic crystal fiber.