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Modulational instability in optical fibers with randomly-kicked normal dispersion

Autor: Dujardin, G., Armaroli, A., Nodari, S. Rota, Mussot, A., Kudlinski, A., Trillo, S., Conforti, M., De Bievre, S.

Publikováno v: Phys. Rev. A 103, 053521 (2021)

We study modulational instability (MI) in optical fibers with random group velocity dispersion (GVD) generated by sharply localized perturbations of a normal GVD fiber that are either randomly or periodically placed along the fiber and that have rand

Externí odkaz: http://arxiv.org/abs/2103.02261

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Compelling experimental evidence of a Dirac cone in the electronic structure of a 2D Silicon layer

Autor: Sadeddine, S., Enriquez, H., Bendounan, A., Das, P., Vobornik, I., Kara, A., Mayne, A., Sirotti, F., Dujardin, G., Oughaddou, H.

Publikováno v: Scientific Reports, 7, 44400 (2017)

The remarkable properties of graphene stem from its two-dimensional (2D) structure, with a linear dispersion of the electronic states at the corners of the Brillouin zone (BZ) forming a Dirac cone. Since then, other 2D materials have been suggested b

Externí odkaz: http://arxiv.org/abs/1811.01291

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Heteroclinic structure of parametric resonance in the nonlinear Schr\'odinger equation

Autor: Conforti, M., Mussot, A., Kudlinski, A., Rota-Nodari, S., Dujardin, G., De Bievre, S., Armaroli, A., Trillo, S.

Publikováno v: Phys. Rev. Lett. 117, 013901 (2016)

We show that the nonlinear stage of modulational instability induced by parametric driving in the {\em defocusing} nonlinear Schr\"odinger equation can be accurately described by combining mode truncation and averaging methods, valid in the strong dr

Externí odkaz: http://arxiv.org/abs/1606.01658

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Modulational instability in dispersion-kicked optical fibers

Autor: Nodari, S. Rota, Conforti, M., Dujardin, G., Kudlinski, A., Mussot, A., Trillo, S., De Bièvre, S.

Publikováno v: Phys. Rev. A 92, 013810 (2015)

We study, both theoretically and experimentally, modulational instability in optical fibers that have a longitudinal evolution of their dispersion in the form of a Dirac delta comb. By means of Floquet theory, we obtain an exact expression for the po

Externí odkaz: http://arxiv.org/abs/1504.06996

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