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Applied Optics

Applied Optics


  • Vol. 38, Iss. 11 — Apr. 10, 1999
  • pp: 2189–2195

Computer-generated holograms to produce high-density intensity patterns

Yasuhiro Takaki and Junichi Hojo  »View Author Affiliations

Applied Optics, Vol. 38, Issue 11, pp. 2189-2195 (1999)

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A computer-generated hologram consisting of N × N resolution cells produces a reconstructed image consisting of N × N sampling points. Since the width of the primary peaks in the point-spread function is twice the pitch of the sampling points, the intensity at intermediate points between the sampling points depends on the interference between the sampling points. Carefully controlling the complex amplitudes of the sampling points makes it possible to control the intensity not only at the sampling points but also at the intermediate points; the intensity of the reconstructed image can be controlled at 2N × 2N points. Preliminary experiments demonstrating the generation of high-density intensity patterns were performed.

© 1999 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(090.0090) Holography : Holography
(090.1760) Holography : Computer holography
(110.2990) Imaging systems : Image formation theory

Original Manuscript: May 26, 1998
Revised Manuscript: November 23, 1999
Published: April 10, 1999

Yasuhiro Takaki and Junichi Hojo, "Computer-generated holograms to produce high-density intensity patterns," Appl. Opt. 38, 2189-2195 (1999)

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