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arXiv · 1006.2817

Light bullets by synthetic diffraction-dispersion matching

Valery E. Lobanov·Yaroslav V. Kartashov·Lluis Torner
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Abstract

We put forward a new approach to generate stable, fully three-dimensional light bullets, which is based on the matching of the intrinsic material dispersion with a suitable effective diffraction. The matching is achieved in adequate waveguide arrays whose refractive index is periodically modulated along the direction of light propagation. We show that by using non-conventional, out-of-phase longitudinal modulation of the refractive index of neighboring channels, it is possible to tune the effective diffraction to match the intrinsic material group velocity dispersion. Three-dimensional light bullets are shown to form at reduced energy levels, in settings where the dispersion would be far too weak to generate bullets in the absence of array.

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Valery E. Lobanov, Yaroslav V. Kartashov, Lluis Torner. 2010-06-14. Light bullets by synthetic diffraction-dispersion matching. https://doi.org/10.1103/physrevlett.105.033901

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