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arXiv · 1201.3248

Topological light bullets supported by spatio-temporal gain

Valery E. Lobanov·Olga. V. Borovkova·Yaroslav V. Kartashov·Victor A. Vysloukh·Lluis Torner
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Abstract

We reveal that the competition between diffraction, cubic nonlinearity, two-photon absorption, and gain localized in both space and time results in arrest of collapse, suppression of azimuthal modula-tion instabilities for spatiotemporal wavepackets, and formation of stable three-dimensional light bul-lets. We show that Gaussian spatiotemporal gain landscapes support bright, fundamental light bullets, while gain landscapes featuring a ring-like spatial and a Gaussian temporal shapes may support stable vortex bullets carrying topological phase dislocations.

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Valery E. Lobanov, Olga. V. Borovkova, Yaroslav V. Kartashov, Victor A. Vysloukh, Lluis Torner. 2012-01-16. Topological light bullets supported by spatio-temporal gain. https://doi.org/10.1103/physreva.85.023804

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