Compact all-optical interferometric logic gates based on one-dimensional metal–insulator–metal structures

Bian, Yusheng; Gong, Qihuang

doi:10.1016/j.optcom.2013.09.055

Cited by 49 publications

(42 citation statements)

References 39 publications

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“…As we know, there has been remarkable progress in developing plasmonic nanostructures, such as surface-enhanced Raman spectroscopy [8], bio/chemical sensors [9,10,11,12], optical waveguides [13,14], lasers [15], absorbers [16], reflectors [17,18], and logic devices [19,20]. Recently, much attention has been given to plasmonic Fano resonances [21,22,23,24], which are classical analogues of the Fano resonance of a quantum system interfered with the discrete excited state of an atom with a continuous state.…”

Section: Introductionmentioning

confidence: 99%

High Quality Plasmonic Sensors Based on Fano Resonances Created through Cascading Double Asymmetric Cavities

Zhang

Shao

Zeng

2016

Sensors

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In this paper, a type of compact nanosensor based on a metal-insulator-metal structure is proposed and investigated through cascading double asymmetric cavities, in which their metal cores shift along different axis directions. The cascaded asymmetric structure exhibits high transmission and sharp Fano resonance peaks via strengthening the mutual coupling of the cavities. The research results show that with the increase of the symmetry breaking in the structure, the number of Fano resonances increase accordingly. Furthermore, by modulating the geometrical parameters appropriately, Fano resonances with high sensitivities to the changes in refractive index can be realized. A maximum figure of merit (FoM) value of 74.3 is obtained. Considerable applications for this work can be found in bio/chemical sensors with excellent performance and other nanophotonic integrated circuit devices such as optical filters, switches and modulators.

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Section: Introductionmentioning

confidence: 99%

High Quality Plasmonic Sensors Based on Fano Resonances Created through Cascading Double Asymmetric Cavities

Zhang

Shao

Zeng

2016

Sensors

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“…Examples of photonic devices created for plasmons are shown in Figure 4 and include "Y" junctions for combining or separating plasmons [68][69][70][71][72], "X" junctions [70], proximity couplers [73], directional couplers [74] [73, [75][76][77][78], Bragg grating filters [69,79], add-drop filters [80], and ring resonators [69,79,81] that transmit or reflect plasmon waves depending on frequency and switching using phase shifts [82]. A novel plasmon filter was created using two wires of different materials joined together that provided a large electric permittivity mismatch resulting in unidirectional propagation [83].…”

Section: Linear Devices For Optical Computingmentioning

confidence: 99%

Plasmonic circuits for manipulating optical information

2016

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Surface plasmons excited by light in metal structures provide a means for manipulating optical energy at the nanoscale. Plasmons are associated with the collective oscillations of conduction electrons in metals and play a role intermediate between photonics and electronics. As such, plasmonic devices have been created that mimic photonic waveguides as well as electrical circuits operating at optical frequencies. We review the plasmon technologies and circuits proposed, modeled, and demonstrated over the past decade that have potential applications in optical computing and optical information processing.

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“…1 SPPs are the interaction of electromagnetic waves and the free electrons of metals, propagating on the metaldielectric or dielectric-metal interfaces. 2,3 Different passive and active plasmonic devices, such as nanocavities, 4 Bragg reflectors, 4 splitters, 5 resonators, 6 couplers, 7 modulators, 8 multi/demultiplexers, 9 stub waveguides, 5 hybrid plasmonic waveguides, 10 switches, 11,12 and logic gates, [13][14][15][16][17][18] have been realized so far. On the subject of all-optical logic gates, several studies have been proposed, analyzed, and investigated, for example, single semiconductor optical amplifiers, 19 hybrid plasmonic-photonic crystal nanobeam cavities, 18 two-photon absorption in silicon waveguides, 20 silicon microring resonators, 21,22 cross-phase modulation, 23 and nanophotonic plasmonics.…”

Section: Introductionmentioning

confidence: 99%

All-optical logic gates based on nanoring insulator–metal–insulator plasmonic waveguides at optical communications band

Abdulnabi

2019

J. Nanophoton.

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We propose, analyze, and simulate a configuration to realize all-optical logic gates based on nanoring insulator-metal-insulator (IMI) plasmonic waveguides. The proposed plasmonic logic gates are numerically analyzed by finite element method. The analyzed gates are NOT, OR, AND, NOR, NAND, XOR, and XNOR. The operation principle of these gates is based on the constructive and destructive interferences between the input signal(s) and the control signal. The suggested value of transmission threshold between logic 0 and logic 1 states is 0.25. The suggested value of the transmission threshold achieves all seven plasmonic logic gates in one structure. We use the same structure with the same dimensions at 1550-nm wavelength for all proposed plasmonic logic gates. Although we realize seven gates, in some cases, the transmission of the proposed plasmonic logic gates exceeds 100%, for example, in OR gate (175%), in NAND gate (112.3%), and in XNOR gate (175%). As a result, the transmission threshold value measures the performance of the proposed plasmonic logic gates. Furthermore, the proposed structure is designed with a very small area (400 nm × 400 nm). The proposed all-optical logic gates structure significantly contributes to the photonic integrated circuits construction and all-optical signal processing nanocircuits. , many all-optical plasmonic structures provided nanoscale logic gates. [25][26][27][28][29] Each nanologic gate has a different way to realize the functions of the gates, a different number

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Compact all-optical interferometric logic gates based on one-dimensional metal–insulator–metal structures

Cited by 49 publications

References 39 publications

High Quality Plasmonic Sensors Based on Fano Resonances Created through Cascading Double Asymmetric Cavities

High Quality Plasmonic Sensors Based on Fano Resonances Created through Cascading Double Asymmetric Cavities

Plasmonic circuits for manipulating optical information

All-optical logic gates based on nanoring insulator–metal–insulator plasmonic waveguides at optical communications band

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