Intense Wave Formation from Multiple Soliton Fusion and the Role of Extra Dimensions

Feifei Xin*, Ludovica Falsi, Davide Pierangeli, Fabrizio Fusella, Galina Perepelitsa, Yehudit Garcia, Aharon J. Agranat, Eugenio Delre

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


We experimentally and numerically explore the role of dimensionality in multiple (three or more) soliton fusion supported by nonreciprocal energy exchange. Three-soliton fusion into an intense wave is found when an extra dimension, with no broken inversion symmetry, is involved. The phenomenon is observed for 2+1D spatial waves in photorefractive crystals, where solitons are supported by a spatially local saturated Kerr-like self-focusing and fusion is driven by the leading nonlocal correction, the spatial analog of the nonlinear Raman effect.

Original languageAmerican English
Article number043901
JournalPhysical Review Letters
Issue number4
StatePublished - 22 Jul 2022

Bibliographical note

Funding Information:
We acknowledge support from the Sapienza-Ricerca di Ateneo 2020 and 2021 projects, the H2020 Fet project PhoQus, PRIN 2020 (Grant No. 2020X4T57A), the Research and National Natural Science Foundation of China (Grant No. 12004282), the Israel Science Foundation (Grant No. 1960/16).

Publisher Copyright:
© 2022 American Physical Society.


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