Ultracompact all-optical logic gates based on nonlinear plasmonic nanocavities

AbstractIn this study, nanoscale integrated all-optical XNOR, XOR, and NAND logic gates were realized based on all-optical tunable on-chip plasmon-induced transparency in plasmonic circuits. A large nonlinear enhancement was achieved with an organic composite cover layer based on the resonant excitation-enhancing nonlinearity effect, slow light effect, and field confinement effect provided by the plasmonic nanocavity mode, which ensured a low excitation power of 200 μW that is three orders of magnitude lower than the values in previous reports. A feature size below 600 nm was achieved, which is a one order of magnitude lower compared to previous reports. The contrast ratio between the output logic states “1” and “0” reached 29 dB, which is among the highest values reported to date. Our results not only provide an on-chip platform for the study of nonlinear and quantum optics but also open up the possibility for the realization of nanophotonic processing chips based on nonlinear plasmonics.

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Multi-mode cross-Kerr interaction and three-qubit all-optical logic gates in a triple electromagnetically induced transparency system

The European Physical Journal D ◽

10.1140/epjd/e2013-40115-5 ◽

2013 ◽

Vol 67 (7) ◽

Cited By ~ 1

Author(s):

Yu Guo

Keyword(s):

Electromagnetically Induced Transparency ◽

Logic Gates ◽

Optical Logic ◽

Optical Logic Gates ◽

All Optical ◽

Induced Transparency ◽

Multi Mode

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Ultrafast all optical XOR gate using photonic crystal-based nonlinear ring resonators

Journal of Optical Communications ◽

10.1515/joc-2021-0019 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Alireza Shamsi

Keyword(s):

Photonic Crystal ◽

Contrast Ratio ◽

Logic Gates ◽

Optical Devices ◽

Ring Resonators ◽

Optical Data ◽

Optical Logic ◽

Xor Gate ◽

Optical Logic Gates ◽

All Optical

Abstract Optical logic gates can play crucial roles for designing all optical data processing circuits. Photonic crystals are one of the suitable platforms that can be used for designing all optical devices. In this paper an optical XOR gate was designed using nonlinear ring resonators. The proposed structure works are based on threshold switching. The working wavelength and the switching threshold of the resonators are 1550 nm and 1.8 W/μm2, respectively. The rise time is about 1 ps and the ON/OFF contrast ratio is about 16 dB.

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All-optical logic gates based on an SOA and an optical filter

31st European Conference on Optical Communications (ECOC 2005) ◽

10.1049/cp:20050456 ◽

2005 ◽

Cited By ~ 1

Author(s):

Z. Li

Keyword(s):

Optical Filter ◽

Logic Gates ◽

Optical Logic ◽

Optical Logic Gates ◽

All Optical

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Regenerative and reconfigurable all-optical logic gates for ultra-fast applications

Electronics Letters ◽

10.1049/el:20058010 ◽

2005 ◽

Vol 41 (7) ◽

pp. 435 ◽

Cited By ~ 72

Author(s):

A. Bogoni ◽

L. Potì ◽

R. Proietti ◽

G. Meloni ◽

F. Ponzini ◽

...

Keyword(s):

Logic Gates ◽

Optical Logic ◽

Optical Logic Gates ◽

All Optical

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Band-Gap Solitons in Nonlinear Photonic Crystal Waveguides and Their Application for Functional All-Optical Logic Gating

Photonics ◽

10.3390/photonics8070250 ◽

2021 ◽

Vol 8 (7) ◽

pp. 250

Author(s):

Vakhtang Jandieri ◽

Ramaz Khomeriki ◽

Tornike Onoprishvili ◽

Daniel Erni ◽

Levan Chotorlishvili ◽

...

Keyword(s):

Photonic Crystal ◽

Band Gap ◽

Crystalline Silicon ◽

Logic Gates ◽

Photonic Crystal Waveguides ◽

Optical Logic ◽

Logical Operation ◽

Pulse Envelope ◽

Gap Soliton ◽

All Optical

This review paper summarizes our previous findings regarding propagation characteristics of band-gap temporal solitons in photonic crystal waveguides with Kerr-type nonlinearity and a realization of functional and easily scalable all-optical NOT, AND and NAND logic gates. The proposed structure consists of a planar air-hole type photonic crystal in crystalline silicon as the nonlinear background material. A main advantage of proposing the gap-soliton as a signal carrier is that, by operating in the true time-domain, the temporal soliton maintains a stable pulse envelope during each logical operation. Hence, multiple concatenated all-optical logic gates can be easily realized paving the way to multiple-input ultrafast full-optical digital signal processing. In the suggested setup, due to the gap-soliton features, there is no need to amplify the output signal after each operation which can be directly used as a new input signal for another logical operation. The efficiency of the proposed logic gates as well as their scalability is validated using our original rigorous theoretical formalism confirmed by full-wave computational electromagnetics.

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All optical NAND/NOR and majority gates using nonlinear photonic crystal ring resonator

Journal of Optical Communications ◽

10.1515/joc-2020-0246 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Hassan Mamnoon-Sofiani ◽

Sahel Javahernia

Keyword(s):

Photonic Crystal ◽

Ring Resonator ◽

Logic Gates ◽

Building Blocks ◽

Optical Data ◽

Optical Logic ◽

Optical Logic Gates ◽

Nonlinear Photonic Crystal ◽

All Optical ◽

Photonic Crystal Ring Resonator

Abstract All optical logic gates are building blocks for all optical data processors. One way of designing optical logic gates is using threshold switching which can be realized by combining an optical resonator with nonlinear Kerr effect. In this paper we showed that a novel structure consisting of nonlinear photonic crystal ring resonator which can be used for realizing optical NAND/NOR and majority gates. The delay time of the proposed NAND/NOR and majority gates are 2.5 ps and 1.5 ps respectively. Finite difference time domain and plane wave expansion methods were used for simulating the proposed optical logic gates. The total footprint of the proposed structure is about 988 μm2.

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