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  • 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 2019),
  • paper ef_3_1

Analog Hawking effect enhanced by 4th-order dispersion phase matching

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Abstract

Hawking radiation [1], the spontaneous emission of radiation by a black hole, is one of the most important discoveries of the XXth century, uniting gravity and thermodynamics, and providing a key insight into the as yet undiscovered theory of quantum gravity. In 1981, Unruh showed that analogs of Hawking radiation could be found in material systems in which a background flow induces an effective horizon for the quasi-particles [2]. The possibility of demonstrating Hawking-like radiation in optics [3] has attracted much attention. The idea is that a short pulse induces, through the Kerr nonlinearity, a refractive index change dn which gives rise to an effective horizon for a probe wave at another frequency. Despite considerable progress, both theoretical and experimental [4,5], demonstration of Hawking-like radiation in optics remains elusive because of the requirement of an ultra-high peak power and ultra-short background pulse, combined with the expected smallness of the rate of pair production.

© 2019 IEEE

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