Gap solitons in spatiotemporal photonic crystals

Fabio Biancalana, Andreas Amann, Eoin P. O'Reilly

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


We generalize the concept of nonlinear periodic structures to systems that show arbitrary spacetime variations of the refractive index. Nonlinear pulse propagation through these spatiotemporal photonic crystals can be described, for shallow nonstationary gratings, by coupled mode equations which are a generalization of the traditional equations used for stationary photonic crystals. Additional gap soliton solutions are found analytically. They represent a generalization of the gap solitons in static photonic crystals and resonance solitons found in dynamic gratings.

Original languageEnglish
Article number011801
Number of pages4
JournalPhysical Review A
Issue number1
Publication statusPublished - Jan 2008


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