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Graphene-based plasmonic electro-optical SR flip-flop with an ultra-compact footprint
Optics Express
|September 10, 2020
Summary
We introduce novel electro-optical plasmonic Set-Reset flip-flops for mid-infrared applications. These ultra-compact devices offer low energy consumption and robust error performance, representing a new advancement in plasmonic computing.
Area of Science:
- Optoelectronics
- Nanophotonics
- Plasmonics
Background:
- Traditional flip-flops face limitations in speed and energy efficiency.
- Plasmonic devices offer potential for ultra-compact and high-speed optical computing components.
Purpose of the Study:
- To propose and evaluate a new concept for electro-optical plasmonic Set-Reset flip-flops.
- To demonstrate the feasibility of controlling surface plasmon polaritons for electrical switching with optical output.
Main Methods:
- Utilized the 3D finite-difference time-domain (FDTD) method for simulation and evaluation.
- Designed a plasmonic structure controlled by an electrostatic field for switching operations.
Main Results:
- Achieved an ultra-compact footprint of 1.62 µm².
- Demonstrated low energy consumption of 2.5 fJ/bit.
- Obtained a minimum extinction ratio of 14.61 dB and robust error performance.
Conclusions:
- The proposed electro-optical plasmonic flip-flop is a novel device with significant potential for future optical computing.
- This work presents the first reported plasmonic flip-flop, paving the way for new integrated photonic circuits.
