Realization of logical gates in the optical domain is a crucial part of current research to take the advantages of light speed in future demands, an example optical computer motherboard. Here, this paper proposed a simple reconfigurable XOR/OR gate using Two-Dimensional (2D) Photonic crystal structure. The performance of the device is analyzed using 2D finite difference time domain method. The dimension of the proposed crystal structure is 12.5 µm × 12 µm. The field distribution has been measured and displayed to indicate the performance of the logic gates. The proposed structure is very compact with a low latency of 120 fs.

中文翻译：

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使用低延迟二维光子晶体的可重构异或/或逻辑门的设计和分析

在光域中实现逻辑门是当前研究的关键部分，以在未来需求中利用光速优势，例如光学计算机主板。在这里，本文提出了一种使用二维 (2D) 光子晶体结构的简单可重构 XOR/OR 门。使用二维有限差分时域方法分析该装置的性能。建议的晶体结构尺寸为 12.5 µm × 12 µm。已测量并显示场分布以指示逻辑门的性能。所提出的结构非常紧凑，具有 120 fs 的低延迟。