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Optics Letters

Optics Letters


  • Vol. 21, Iss. 18 — Sep. 15, 1996
  • pp: 1516–1518

Continuous-level phase-only computer-generated hologram realized by dislocated binary gratings

Ming Li, Anders Larsson, Niklas Eriksson, Mats Hagberg, and Jörgen Bengtsson  »View Author Affiliations

Optics Letters, Vol. 21, Issue 18, pp. 1516-1518 (1996)

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It is proposed and experimentally demonstrated that a multilevel or even continuous-level phase-only computer-generated hologram can be realized by use of a binary (two-level) structure. The desired phase shift is invoked by introduction of a lateral dislocation of a high-frequency binary grating within each of the elements that constitute the hologram. An asymmetrically distributed spot array has been generated experimentally, and a uniformity error of 6% and an efficiency of 42% have been measured.

© 1996 Optical Society of America

Original Manuscript: March 19, 1996
Published: September 15, 1996

Ming Li, Jörgen Bengtsson, Anders Larsson, Niklas Eriksson, and Mats Hagberg, "Continuous-level phase-only computer-generated hologram realized by dislocated binary gratings," Opt. Lett. 21, 1516-1518 (1996)

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