Spatial transformation of Laguerre-Gaussian laser modes

J Arlt, R Kuhn, Kishan Dholakia

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

A method is described to spatially transform the annular profile of an arbitrary high-order Laguerre-Gaussian (LG) laser mode into an ultranarrow annulus using a combination of an axicon and a lens. The method is shown to conserve the azimuthal phase variation of the illuminating LG mode. The thin annular (hollow) light beam generated possesses orbital angular momentum and is suitable for experimental studies with cold atoms.

Original languageEnglish
Pages (from-to)783-787
Number of pages5
JournalJournal of Modern Optics
Volume48
Issue number5
Publication statusPublished - Apr 2001

Keywords

  • ORBITAL ANGULAR-MOMENTUM
  • LIGHT-BEAMS
  • ATOMS

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