All-optical memory based on surface plasmons and Kerr-type nonlinear cavity
This paper presents a novel ultra-fast all-optical plasmonic memory architecture designed for next-generation integrated photonic circuits. The proposed memory cell employs metal–insulator-metal (MIM) plasmonic waveguides integrated with Kerr-type nonlinear nanocavities to enable efficient all-optic...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-07-01
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| Series: | Results in Physics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379725001950 |
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| Summary: | This paper presents a novel ultra-fast all-optical plasmonic memory architecture designed for next-generation integrated photonic circuits. The proposed memory cell employs metal–insulator-metal (MIM) plasmonic waveguides integrated with Kerr-type nonlinear nanocavities to enable efficient all-optical switching. Through systematic finite-difference time-domain (FDTD) simulations, we demonstrate robust operation across standard telecommunication wavelengths while maintaining precise wavelength tunability. The optimized design achieves remarkable performance metrics, including an ultra-low enable intensity of 7 MW/cm2, a compact footprint of 1.2 μm2, and sub-100-femtosecond switching speeds. Detailed analysis of Poynting vector distributions reveals how plasmonic nanocavity resonances facilitate optical bistability, providing critical insights into the operational mechanism. Compared with existing all-optical memory solutions, our architecture offers superior power efficiency, enhanced transmission contrast, and higher integration density. These advantages position the proposed design as an ideal candidate for high-performance optical computing systems and on-chip memory applications, addressing key challenges in photonic data processing. |
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| ISSN: | 2211-3797 |