Efficient pseudo-nondiffracting beam shaping using a quasicontinuous-phase diffractive element

Michael R. Wang, Changyuan Yu, Alberto J. Varela

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)


We report a new diffractive beam shaper that transforms an incident Gaussian beam into a pseudo-nondiffracting beam with a relatively flat on-axis intensity distribution in the propagation range. The compact single-element beam shaper with a quasicontinuous phase structure demonstrated beam-forming efficiency of 87.5%. The effects of misalignment and beam size error on beam-forming quality are also addressed.
Original languageEnglish
Pages (from-to)517-524
Number of pages8
JournalOptical Engineering
Issue number4
Publication statusPublished - 1 Apr 2001
Externally publishedYes


  • Beam shaping
  • Diffractive optical elements
  • Gray-level mask
  • Nondiffracting beam

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering(all)

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