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All-optical NAND / NOR logic gates using bistable switching

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Abstract

A logical NAND and NOR gate was simulated using bistability behavior in nonlinear medium of Fabry–Perot cavity based on the inverse trend of output intensity vs. input intensity. The gate was optimised relative to different cavity parameters, sharp edges between the ON and OFF modes and threshold switching intensity. The real and imaginary parts of the refractive index of the nonlinear medium were utilised to compute numerical results. Finally, gate speed was calculated to be 9.2 Gb / s.

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Authors and Affiliations

  1. Department of Physics, Faculty of Science, Vali-e-Asr University of Rafsanjan, Rafsanjan, 7718897111, Iran

    Ali Rahmati & Mohammad Ali Amandadi

  2. Nanostructure Laboratory, Faculty of Science, Vali-e-Asr University of Rafsanjan, Rafsanjan, 7718897111, Iran

    Ali Rahmati

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  1. Ali Rahmati
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  2. Mohammad Ali Amandadi
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Correspondence to Ali Rahmati.

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Rahmati, A., Amandadi, M.A. All-optical NAND / NOR logic gates using bistable switching. Pramana - J Phys 93, 90 (2019). https://doi.org/10.1007/s12043-019-1851-y

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  • DOI: https://doi.org/10.1007/s12043-019-1851-y

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