Multilevel phase-only array generators with a trapezoidal phase topology

Paul Blair, Herman Lüpken, Mohammad R. Taghizadeh, Frank Wyrowski

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The implementation of a two-stage design process for the design of diffractive optical elements for array illumination is described. Results are presented for on-axis two-dimensional array illuminators for which this method is used. The final designs are theoretically within 5% of the calculated diffraction efficiency upper bound, and theoretical signal reconstruction error is below 1%. Experimental verification of the design theory is given, with experimental diffraction efficiencies within 4% of design values and signal reconstruction error below 6%. © 1997 Optical Society of America.

Original languageEnglish
Pages (from-to)4713-4721
Number of pages9
JournalApplied Optics
Issue number20
Publication statusPublished - 10 Jul 1997


  • Array illuminators
  • Diffractive phase elements
  • Optical computing


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