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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 15, Iss. 11 — Nov. 1, 1976
  • pp: 2698–2700

Sequential information retrieval from holograms

C. S. Ih  »View Author Affiliations


Applied Optics, Vol. 15, Issue 11, pp. 2698-2700 (1976)
http://dx.doi.org/10.1364/AO.15.002698


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Abstract

A scheme by which information retrieved from holograms can be made in a true sequential fashion (no buffer storage) is described. By using a reduction lens and making the Fourier transform hologram only in the transverse direction, high information recording density can be achieved in both the longitudinal and transverse direction on a long tape. A tenfold or more increase in total information density as compared with direct recording methods is possible. The feasibility of using this scheme for audio recording is demonstrated. When fully implemented, a multitrack (two or more) and multichannel (four or more) audio system is possible. The hologram tape can be economically replicated.

© 1976 Optical Society of America

History
Original Manuscript: July 25, 1974
Revised Manuscript: June 22, 1976
Published: November 1, 1976

Citation
C. S. Ih, "Sequential information retrieval from holograms," Appl. Opt. 15, 2698-2700 (1976)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-15-11-2698

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