Abstract

A new method is proposed to overcome the encoding problem that plagues optical shadow-casting logic processors.

© 1989 Optical Society of America

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References

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  1. J. Tanida, Y. Ichioka, “Optical Logic Array Processor Using Shadowgrams,” J. Opt. Soc. Am. 73, 800–809 (1983).
    [CrossRef]
  2. Y. Li, G. Eichmann, R. R. Alfano, “Optical Computing Using Hybrid Encoded Shadow Casting,” Appl. Opt. 25, 2636–2638 (1986).
    [CrossRef] [PubMed]
  3. M. A. Karim, A. A. S. Awwal, A. K. Cherri, “Polarization-Encoded Optical Shadow-Casting Logic Units: Design,” Appl. Opt. 26, 2720–2725 (1987).
    [CrossRef] [PubMed]
  4. F. T. S. Yu, S. Jutamulia, T. Lu, “Optical Parallel Logic Based On Magneto-Optic Spatial Light Modulator,” Opt. Commun. 63, 225–229 (1987).
    [CrossRef]
  5. F. T. S. Yu, S. Jutamulia, D. A. Gregory, “Real-Time Liquid Crystal TV xor- and xnor-Gate Binary Image Subtraction Technique,” Appl. Opt. 26, 2738–2742 (1987).
    [CrossRef] [PubMed]
  6. T. Yatagai, “Optical Space-Variant Logic-Gate Array Based on Spatial Encoding Technique,” Opt. Lett. 11, 260–262 (1986).
    [CrossRef] [PubMed]

1987

1986

1983

Alfano, R. R.

Awwal, A. A. S.

Cherri, A. K.

Eichmann, G.

Gregory, D. A.

Ichioka, Y.

Jutamulia, S.

F. T. S. Yu, S. Jutamulia, T. Lu, “Optical Parallel Logic Based On Magneto-Optic Spatial Light Modulator,” Opt. Commun. 63, 225–229 (1987).
[CrossRef]

F. T. S. Yu, S. Jutamulia, D. A. Gregory, “Real-Time Liquid Crystal TV xor- and xnor-Gate Binary Image Subtraction Technique,” Appl. Opt. 26, 2738–2742 (1987).
[CrossRef] [PubMed]

Karim, M. A.

Li, Y.

Lu, T.

F. T. S. Yu, S. Jutamulia, T. Lu, “Optical Parallel Logic Based On Magneto-Optic Spatial Light Modulator,” Opt. Commun. 63, 225–229 (1987).
[CrossRef]

Tanida, J.

Yatagai, T.

Yu, F. T. S.

F. T. S. Yu, S. Jutamulia, D. A. Gregory, “Real-Time Liquid Crystal TV xor- and xnor-Gate Binary Image Subtraction Technique,” Appl. Opt. 26, 2738–2742 (1987).
[CrossRef] [PubMed]

F. T. S. Yu, S. Jutamulia, T. Lu, “Optical Parallel Logic Based On Magneto-Optic Spatial Light Modulator,” Opt. Commun. 63, 225–229 (1987).
[CrossRef]

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Figures (1)

Fig. 1
Fig. 1

Noncoded shadow-casting optical logic array processor: S, light source; BS, beam splitter; M, mirror.

Equations (12)

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F 2 : A B ̅ = A B ̅ ;
F 3 : A = A B + A B ̅ ;
F 6 : XOR = A B ̅ + Ā B ;
F 7 : OR = A B + A B ̅ + Ā B ;
F 8 : NOR = Ā B ̅ ;
F 9 : XNOR = A B + Ā B ̅ ;
F 10 : B ̅ = A B ̅ + Ā B ̅ ;
F 11 : A + B ̅ = A B + A B ̅ + Ā B ̅ ;
F 12 : Ā = Ā B + Ā B ̅ ;
F 13 : Ā + B = A B + Ā B + Ā B ̅ ;
F 14 : NAND = A B ̅ + Ā B + Ā B ̅ ;
F 15 : T = A B + A B ̅ + Ā B + Ā B ̅ ;

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