Talbot-enhanced, maximum-visibility imaging of condensate interference

Y. Zhai, C. H. Carson, V. A. Henderson, P. F. Griffin, E. Riis, A. S. Arnold

Research output: Contribution to journalArticle

7 Citations (Scopus)
48 Downloads (Pure)

Abstract

Nearly two centuries ago Talbot first observed the fascinating effect whereby light propagating through a periodic structure generates a ‘carpet’ of image revivals in the near field. Here we report the first observation of the spatial Talbot effect for light interacting with periodic Bose-Einstein condensate interference fringes. The Talbot effect can lead to dramatic loss of fringe visibility in images, degrading precision interferometry, however we demonstrate how the effect can also be used as a tool to enhance visibility, as well as extend the useful focal range of matter wave detection systems by orders of magnitude. We show that negative optical densities arise from matter-wave induced lensing of detuned imaging light – yielding Talbot-enhanced single-shot interference visibility of > 135% compared to the ideal visibility for resonant light.
Original languageEnglish
Pages (from-to)80-85
Number of pages6
JournalOptica
Volume5
Issue number1
DOIs
Publication statusPublished - 19 Jan 2018

Keywords

  • Bose-Einstein condensates
  • atom optics
  • Talbot and self-imaging effects

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