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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 22 — Nov. 1, 2004
  • pp: 5345–5355

Design, fabrication and characterization of subwavelength computer-generated holograms for spot array generation

Uriel Levy, Chia-Ho Tsai, Hyo-Chang Kim, and Yeshaiahu Fainman  »View Author Affiliations

Optics Express, Vol. 12, Issue 22, pp. 5345-5355 (2004)

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We report the analysis, design, fabrication and experimental characterization of novel subwavelength computer-generated holograms that produce uniform symmetric spot array. We distinguish between a polarization-sensitive and polarization-insensitive far-field reconstruction and show that a linearly polarized incident illumination is required in the former case in order to generate a symmetric reconstruction. The polarization-insensitive case generates a symmetric response independent of the illumination polarization. We show that this response is equivalent to that of a scalar-based computer-generated hologram but with an additional, independent, term that describes the undiffracted zeroth order. These findings simplify the design and optimization of form birefringent computer-generated holograms (F-BCGH) significantly. We present experimental results that verify our analysis and highlight the advantage of these novel elements over scalar-designed elements.

© 2004 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(260.5430) Physical optics : Polarization

ToC Category:
Research Papers

Original Manuscript: September 1, 2004
Revised Manuscript: October 18, 2004
Published: November 1, 2004

Uriel Levy, Chia-Ho Tsai, Hyo-Chang Kim, and Yeshaiahu Fainman, "Design, fabrication and characterization of subwavelength computer-generated holograms for spot array generation," Opt. Express 12, 5345-5355 (2004)

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