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Optics Express

Optics Express

  • Editor: J. H. Eberly
  • Vol. 1, Iss. 2 — Jul. 21, 1997
  • pp: 54–59

Dual-wavelength operation diffractive phase elements for pattern formation

Ian M. Barton, Paul Blair, and Mohammad R. Taghizadeh  »View Author Affiliations

Optics Express, Vol. 1, Issue 2, pp. 54-59 (1997)

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We report on the design and fabrication of novel diffractive phase elements that reconstruct distinct intensity patterns in the far-field on illumination with two specific wavelengths. The elements contain deep surface-relief structures that represent phase-delays of greater than 2π radians. The design process incorporates a modified version of the iterative Fourier transform algorithm. A 16 phase-level element for dual wavelength (blue and red) operation, with high diffraction efficiency, is demonstrated experimentally.

© Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(330.6180) Vision, color, and visual optics : Spectral discrimination

ToC Category:
Research Papers

Original Manuscript: July 10, 1997
Revised Manuscript: July 9, 1997
Published: July 21, 1997

Ian Barton, Paul Blair, and Mohammad Reza Taghizadeh, "Dual-wavelength operation diffractive phase elements for pattern formation," Opt. Express 1, 54-59 (1997)

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