Experimental observation of focal shifts in focused partially coherent beams

Fei Wang, Yangjian Cai, Olga Korotkova

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


We report the experimental observation of focal shifts in partially coherent beams of Gaussian Schell-model (GSM) type focused by a circularly apertured thin lens. The relative focal shift increases as the aperture radius or the state of coherence of the GSM source decrease. The experimental results agree well with theoretical predictions.

Original languageEnglish (US)
Pages (from-to)3408-3413
Number of pages6
JournalOptics Communications
Issue number17
StatePublished - Sep 1 2009


  • Focal shift
  • Partially coherent beam

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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