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24 November 2021 All-logical processing based on plasmonic coding metamaterials and multi-objective optimization
Yihang Dan, Zeyang Fan, Tian Zhang, Xiaojuan Sun, Kun Xu
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Proceedings Volume 12062, AOPC 2021: Optoelectronics and Nanophotonics; 1206205 (2021) https://doi.org/10.1117/12.2601269
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China
Abstract
Plasmonic devices are considered as a potential platform to realize highly integrated photonic circuits. Optical logic gates are fundamental computing and light-controlling elements in optical circuits and optical computing, and many plasmonic logic gates have been studied. However, these devices can only realize single or several specific logical operations. In this work, we propose a multiport plasmonic system to realize all-logical processing based on coding metamaterials (CMs) and inverse design. We utilize nondominated sorting genetic algorithm-II to optimize the distributions of CMs. After optimization, the simulation results exhibit that all types of logic gates (AND, OR, NOT, NAND, NOR, XOR and XNOR) can be obtained with the operating wavelength of 1.31μm and a small footprint (0.8×1.1 μm2). Moreover, the extinction ratio between logical "1" and "0" states exceeds 20 dB for OR, NOT, XNOR and XOR logic gates.
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Yihang Dan, Zeyang Fan, Tian Zhang, Xiaojuan Sun, and Kun Xu "All-logical processing based on plasmonic coding metamaterials and multi-objective optimization", Proc. SPIE 12062, AOPC 2021: Optoelectronics and Nanophotonics, 1206205 (24 November 2021); https://doi.org/10.1117/12.2601269
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KEYWORDS
Logic devices
Plasmonics
Metamaterials
Waveguides
Integrated optics
Optical components
Photonic integrated circuits
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