Realization of optical carpets in the Talbot and Talbot-Lau configurations

William B Case, Mathias Tomandl, Sarayut Deachapunya, Markus Arndt

Publications: Contribution to journalArticlePeer Reviewed


Talbot and Talbot-Lau effects are frequently used in lensless imaging applications with light, ultrasound, x-rays, atoms and molecules – generally in situations where refractive optical elements are non-existent or not suitable. We here show an experimental visualization of the intriguing wave patterns that are associated with near-field interferometry behind a single periodic diffraction grating under plane wave illumination and which are often referred to as Talbot carpets or quantum carpets. We also show the patterns behind two separated diffraction gratings under nearly-monochromatic but spatially incoherent illumination that illustrate the nature of Talbot-Lau carpets. © 2009 Optical Society of America
Original languageEnglish
Pages (from-to)20966-20974
Number of pages9
JournalOptics Express
Issue number23
Publication statusPublished - 2009

Austrian Fields of Science 2012

  • 103021 Optics
  • 103026 Quantum optics
  • 103008 Experimental physics

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