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<p>The NOR gate is widely used in digital circuits that can be used to design logic circuits. In this research, an optical NOR gate has been designed and simulated using a two-dimensional photonic crystal. Most of the work that has been done so far to design logic gates in photonic crystal substrates has used a photonic crystal lattice, including rods in air. In this research, the photonic crystal structure includes holes in the silicon substrate, which is easier to design during fabrication. One of the characteristics of the proposed NOR gate is its simple structure and strong values of 0 and 1, which increase the contrast ratio of the gate (CR = 9.39dB). In other words, the error in detecting high and low values is reduced.</p>

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Design of an optical NOR logic gate with high contrast ratio and low detection error on silicon substrate

  • 期刊论文

  • 发表日期：

    2025年3月19日

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  • Pouya Karami,
  • Fariborz Parandin

摘要

The NOR gate is widely used in digital circuits that can be used to design logic circuits. In this research, an optical NOR gate has been designed and simulated using a two-dimensional photonic crystal. Most of the work that has been done so far to design logic gates in photonic crystal substrates has used a photonic crystal lattice, including rods in air. In this research, the photonic crystal structure includes holes in the silicon substrate, which is easier to design during fabrication. One of the characteristics of the proposed NOR gate is its simple structure and strong values of 0 and 1, which increase the contrast ratio of the gate (CR = 9.39dB). In other words, the error in detecting high and low values is reduced.