Abstract

A method of multiplexing holograms by rotating the material or, equivalently, the recording beams is described. Peristropic (Greek for rotation) multiplexing can be combined with other multiplexing methods to increase the storage density of holographic storage systems. Peristrophic multiplexing is experimentally demonstrated with Du Pont’s HRF-150 photopolymer film. We multiplexed a total of 295 holograms in a 38-μm-thick photopolymer film by combining peristrophic multiplexing with angle multiplexing.

© 1994 Optical Society of America

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References

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  1. W. K Smothers, T. J. Trout, A. M. Weber, D. J. Mickish, presented at Second International Conference on Holographic Systems, Bath, UK, 1989.
  2. K. Curtis, D. Psaltis, Appl. Opt. 31, 7425 (1992).
    [CrossRef] [PubMed]
  3. K Curtis, D. Psaltis, in Annual Meeting, Vol. 23 of 1992 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1992), paper ThX3.
  4. D. Psaltis, D. Brady, X. G. Gu, S. Lin, Nature (London) 343, 325 (1990).
    [CrossRef] [PubMed]
  5. F. H. Mok, Opt. Lett. 18, 915 (1993).
    [CrossRef] [PubMed]
  6. H. Y. S. Li, “Photorefractive 3-D disks for optical data storage and artificial neural networks,” Ph.D. dissertation (California Institute of Technology, Pasadena, Calif., 1994).
  7. D. Brady, D. Psaltis, J. Opt. Soc. Am. A 9, 1167 (1992).
    [CrossRef]

1993

1992

1990

D. Psaltis, D. Brady, X. G. Gu, S. Lin, Nature (London) 343, 325 (1990).
[CrossRef] [PubMed]

Brady, D.

D. Brady, D. Psaltis, J. Opt. Soc. Am. A 9, 1167 (1992).
[CrossRef]

D. Psaltis, D. Brady, X. G. Gu, S. Lin, Nature (London) 343, 325 (1990).
[CrossRef] [PubMed]

Curtis, K

K Curtis, D. Psaltis, in Annual Meeting, Vol. 23 of 1992 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1992), paper ThX3.

Curtis, K.

Gu, X. G.

D. Psaltis, D. Brady, X. G. Gu, S. Lin, Nature (London) 343, 325 (1990).
[CrossRef] [PubMed]

Li, H. Y. S.

H. Y. S. Li, “Photorefractive 3-D disks for optical data storage and artificial neural networks,” Ph.D. dissertation (California Institute of Technology, Pasadena, Calif., 1994).

Lin, S.

D. Psaltis, D. Brady, X. G. Gu, S. Lin, Nature (London) 343, 325 (1990).
[CrossRef] [PubMed]

Mickish, D. J.

W. K Smothers, T. J. Trout, A. M. Weber, D. J. Mickish, presented at Second International Conference on Holographic Systems, Bath, UK, 1989.

Mok, F. H.

Psaltis, D.

D. Brady, D. Psaltis, J. Opt. Soc. Am. A 9, 1167 (1992).
[CrossRef]

K. Curtis, D. Psaltis, Appl. Opt. 31, 7425 (1992).
[CrossRef] [PubMed]

D. Psaltis, D. Brady, X. G. Gu, S. Lin, Nature (London) 343, 325 (1990).
[CrossRef] [PubMed]

K Curtis, D. Psaltis, in Annual Meeting, Vol. 23 of 1992 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1992), paper ThX3.

Smothers, W. K

W. K Smothers, T. J. Trout, A. M. Weber, D. J. Mickish, presented at Second International Conference on Holographic Systems, Bath, UK, 1989.

Trout, T. J.

W. K Smothers, T. J. Trout, A. M. Weber, D. J. Mickish, presented at Second International Conference on Holographic Systems, Bath, UK, 1989.

Weber, A. M.

W. K Smothers, T. J. Trout, A. M. Weber, D. J. Mickish, presented at Second International Conference on Holographic Systems, Bath, UK, 1989.

Appl. Opt.

J. Opt. Soc. Am. A

Nature

D. Psaltis, D. Brady, X. G. Gu, S. Lin, Nature (London) 343, 325 (1990).
[CrossRef] [PubMed]

Opt. Lett.

Other

H. Y. S. Li, “Photorefractive 3-D disks for optical data storage and artificial neural networks,” Ph.D. dissertation (California Institute of Technology, Pasadena, Calif., 1994).

W. K Smothers, T. J. Trout, A. M. Weber, D. J. Mickish, presented at Second International Conference on Holographic Systems, Bath, UK, 1989.

K Curtis, D. Psaltis, in Annual Meeting, Vol. 23 of 1992 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1992), paper ThX3.

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Figures (2)

Fig. 1
Fig. 1

Setup for peristrophic multiplexing. SLM, spatial light modulator.

Fig. 2
Fig. 2

Diffraction efficiency versus hologram number for 295 holograms stored in 38-μm-thick film.

Equations (7)

Equations on this page are rendered with MathJax. Learn more.

R S = exp ( i 2 π sin θ r λ x ) exp ( i 2 π sin θ s λ x ) .
R * S = exp ( i 2 π sin θ r x λ x ) exp ( i 2 π sin θ s x λ ) × exp [ i 2 π ( sin θ s + sin θ r ) d θ y λ ] .
d θ d / F sin θ s + sin θ r ,
d θ 2 λ / δ sin θ s + sin θ r ,
R = exp [ i ( 2 π sin θ r λ x + 2 π cos θ r λ z ) ]
S = exp [ i ( 2 π sin θ r λ x + 2 π cos θ r λ z ) ] ,
d θ = { 2 λ t [ cos θ s sin θ r ( sin θ s + sin θ r ) ] } 1 / 2 ,

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