Diffusion-trapped airy beams in photorefractive media

Shu Jia, Joyce Lee, Jason W. Fleischer, Georgios A. Siviloglou, Demetrios N. Christodoulides

Research output: Contribution to journalArticlepeer-review

131 Scopus citations


We report the first experimental observation of self-trapped Airy beams in a nonlinear medium. As opposed to screening or photovoltaic spatial solitons, this new class of self-localized beams owes its existence to carrier diffusion effects. The asymmetric action of two-wave mixing supports the asymmetric intensity profile of the Airy states, with a balance that is independent of the beam intensity (unlike solitons). Further, the self-trapped wave packets self-bend during propagation at an acceleration rate that is independent of the thermal energy associated with the diffusive nonlinearity.

Original languageEnglish (US)
Article number253904
JournalPhysical review letters
Issue number25
StatePublished - Jun 24 2010

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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