Quasi-bloch oscillations in curved coupled optical waveguides

Arash Joushaghani, Rajiv Iyer, Joyce K.S. Poon, J. Stewart Aitchison, C. Martijn De Sterke, Jun Wan, Marc M. Dignam

Research output: Contribution to journalArticlepeer-review


We report the observation of quasi-Bloch oscillations, a recently proposed, new type of dynamic localization in the spatial evolution of light in a curved coupled optical waveguide array. By spatially resolving the optical intensity at various propagation distances, we show the delocalization and final relocalization of the beam in the waveguide array. Through comparisons with other structures, we show that this dynamic localization is robust beyond the nearest-neighbor tight-binding approximation and exhibits a wavelength dependence different from conventional dynamic localization.

Original languageEnglish (US)
Article number143903
JournalPhysical Review Letters
Issue number14
StatePublished - Oct 1 2009

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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