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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 34 — Dec. 1, 2009
  • pp: H16–H22

Disk hologram made from a computer-generated hologram

Takeshi Yamaguchi, Tomohiko Fujii, and Hiroshi Yoshikawa  »View Author Affiliations


Applied Optics, Vol. 48, Issue 34, pp. H16-H22 (2009)
http://dx.doi.org/10.1364/AO.48.000H16


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Abstract

We have been investigating disk holograms made from a computer-generated hologram (CGH). Since a general flat format hologram has a limited viewable area, we usually cannot see the other side of the reconstructed object. Therefore, we propose a computer-generated cylindrical hologram (CGCH) to obtain a hologram with a 360 deg viewable area. The CGCH has a special shape that is difficult to construct and calculation of such a hologram takes too much time. In contrast, a disk-type hologram is well known as a 360 deg viewable hologram. Since a regular disk hologram is a flat reflective type, the reconstruction setup is easy. However, there are just a few reports about creating a disk hologram by use of a CGH. Because the output device lacks spatial resolution, the hologram cannot provide a large diffraction angle. In addition, the viewing zone depends on the hologram size; the maximum size of the fringe pattern is decided on the basis of the special frequency of the output device. The calculation amount of the proposed hologram is approximately a quarter of that of a CGCH. In a previous study, a disk hologram made from a CGH was achieved. However, since the relation between the vertical viewing zone and reconstructed image size is a trade-off, the size of the reconstructed image and view zone is not enough for practical use. To improve both parameters, we modified a fringe printer to issue a high-resolution fringe pattern for a disk hologram. In addition, we propose a new calculation method for fast calculation.

© 2009 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(090.2870) Holography : Holographic display

ToC Category:
Computer-Generated Holography

History
Original Manuscript: July 1, 2009
Revised Manuscript: August 17, 2009
Manuscript Accepted: August 18, 2009
Published: September 2, 2009

Citation
Takeshi Yamaguchi, Tomohiko Fujii, and Hiroshi Yoshikawa, "Disk hologram made from a computer-generated hologram," Appl. Opt. 48, H16-H22 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-34-H16

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