Abstract

Conventional computer-generated holograms (CGHs) consist of regularly spaced square pixels, which, when replayed, exhibit many repeated higher orders. Furthermore, such pixellated CGHs are not well suited to printing using a conventional laser printer. In this Letter a novel method is presented that exploits the characteristics of a conventional laser-printing process to generate holograms with replay fields that exhibit markedly suppressed higher orders.

© 2006 Optical Society of America

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References

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  1. S. Heddle and R. M. Sillitto, J. Mod. Opt. 40, 299 (1993).
    [CrossRef]

1993 (1)

S. Heddle and R. M. Sillitto, J. Mod. Opt. 40, 299 (1993).
[CrossRef]

Heddle, S.

S. Heddle and R. M. Sillitto, J. Mod. Opt. 40, 299 (1993).
[CrossRef]

Sillitto, R. M.

S. Heddle and R. M. Sillitto, J. Mod. Opt. 40, 299 (1993).
[CrossRef]

J. Mod. Opt. (1)

S. Heddle and R. M. Sillitto, J. Mod. Opt. 40, 299 (1993).
[CrossRef]

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Figures (3)

Fig. 1
Fig. 1

(a) Square- and (b) circular-pixel computer-generated holograms, written onto transparency by using a standard laser-printing process.

Fig. 2
Fig. 2

Replay field resulting from a binary amplitude hologram containing circular pixels of varying radius, written by using a laser printer.

Fig. 3
Fig. 3

Comparison between replay fields of (a) square- and (b) circular-pixel holograms. The holograms written by using circular pixels of varying size exhibit markedly suppressed higher orders.

Equations (3)

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R = f λ Δ ,
F [ f ( x , y ) ] = F ( u , v ) = f ( x , y ) exp [ j 2 π ( u x + v y ) ] d x d y .
F ( q , ϕ ) = a q J 1 ( 2 π a q ) exp [ j 2 π q ( α cos ϕ + β sin ϕ ) ] ,

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