Ultracompact all-optical full-adder and half-adder based on nonlinear plasmonic nanocavities

Xie, Jingya; Niu, Xinxiang; Hu, Xiaoyong; Wang, Feifan; Chai, Zhen; Yang, Hong; Gong, Qihuang

doi:10.1515/nanoph-2017-0035

Cited by 43 publications

(18 citation statements)

References 55 publications

(96 reference statements)

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“…The resonant wavelength of the photonic crystal nanocavity mode thus shifts accordingly in the short wavelength direction. Subsequently, the Fano‐like curve also shifts in the short wavelength direction, as shown in Figure e, which shows that the transmission changes distinctly along with change in the gate voltage. The magnified transmission spectrum that was extracted at ≈830 nm from the photonic crystal nanocavity with the upper ZnO nanowire as a function of the gate voltage is shown in Figure f.…”

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confidence: 85%

On‐Chip Dual Electro‐Optic and Optoelectric Modulation Based on ZnO Nanowire‐Coated Photonic Crystal Nanocavity

Xie

et al. 2018

Advanced Optical Materials

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Electronic–photonic hybrid integrated circuits represent the essential basis of next‐generation ultrahigh‐speed information processing chips, which will require ultrafast and ultralow‐energy‐consumption electronic and photonic information interconversion and modulation, i.e., on‐chip dual electro‐optic and optoelectric modulation. However, this type of modulation has not been realized to date because of an absence of materials that demonstrate sufficient intrinsic electro‐optic and optoelectric responses simultaneously. On‐chip dual electro‐optic and optoelectric modulation is experimentally realized here based on refractive index variation of a ZnO nanowire driven by the gate voltage and electrical conductivity changes in this nanowire caused by the strong localized light field of a silicon nitride photonic crystal nanocavity mode. A low gate voltage of 1.5 V induces a large shift of 7 nm in the Fano‐like resonance wavelength and modulates the propagation state of an 800 nm light signal with a large modulation depth of 75%. Additionally, weak signal light with power as low as 0.4 µW induces a modulation depth of 60% in the electric signal. On‐chip conversion between electronic and photonic signals thus is achieved. This work paves the way toward realization of novel nanoscale multifunctional optoelectronic integrated devices and provides an on‐chip platform for the study of new optoelectronic functional materials.

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confidence: 85%

On‐Chip Dual Electro‐Optic and Optoelectric Modulation Based on ZnO Nanowire‐Coated Photonic Crystal Nanocavity

Xie

et al. 2018

Advanced Optical Materials

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“…In contrast, when two ports are both excited, the injected power is doubled and the transmission minimum is shifted to 815 nm, realizing the operation of "1 XOR 1 = 0". Also, when introducing X-shaped branched waveguides and multicomponent nanocavities, an alloptical full-adder can also be constructed with three input ports and two output ports [156].…”

Section: All-optical Logic Devicesmentioning

confidence: 99%

Plasmon-induced transparency effect for ultracompact on-chip devices

Niu

Yan

et al. 2019

Nanophotonics

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On-chip plasmon-induced transparency (PIT) possessing the unique properties of controlling light propagation states is a promising way to on-chip ultrafast optical connection networks as well as integrated optical processing chips. On-chip PIT has attracted enormous research interests, the latest developments of which have also yield progress in nanophotonics, material science, nonlinear optics, and so on. This review summarizes the realization methods, novel configurations, diversiform materials, and the improved performance indexes. Finally, a brief outlook on the remaining challenges and possible development direction in the pursuit of the application of a practical on-chip photonic processor based on PIT is also afforded.

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“…Fano resonance, a fundamentally interesting feature resulting from the interference between a discrete narrow localized state and the background broadband continuum, exhibits an asymmetric line shape with a high quality factor, which can sustain significantly enhanced modal fields, [ 1–5 ] and enable numerous photonic applications, such as optical switching, [ 6–9 ] sensing, [ 10–15 ] nonreciprocal propagation, [ 16–21 ] modulation, [ 22–26 ] optical logic gates, [ 27–29 ] and light buffering and storage. [ 3,30–35 ]…”

Section: Introductionmentioning

confidence: 99%

Fano Resonance in Artificial Photonic Molecules

Cao

Dong

Zhou

et al. 2020

Advanced Optical Materials

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photonic applications, such as optical switching, [6][7][8][9] sensing, [10][11][12][13][14][15] nonreciprocal propagation, [16][17][18][19][20][21] modulation, [22][23][24][25][26] optical logic gates, [27][28][29] and light buffering and storage. [3,[30][31][32][33][34][35] The Fano line shape profiles are related to the system's structural parameters and the electromagnetic parameters of ambient media. So, various systems, including optical cavities, [36][37][38][39] nanoclusters, [40][41][42][43] photonic crystals, [44][45] gratings, [46][47][48][49] metamaterials, [50][51][52][53] metasurfaces, [54][55][56][57] and many others, [58][59][60][61][62][63] have been proposed theoretically and observed experimentally to exhibit Fano resonance. Inspired by recent progress in numerous novel materials, [64][65][66][67][68][69] including 2D materials with exotic optoelectronic properties, [70][71][72] superconducting materials, [73,74] phase-changed materials, [75,76] low loss dielectric materials [77,78] and quantum dots, [79][80][81][82] many opportunities to investigate Fano resonance are anticipated.It is well-known that the macroscopically arrayed structures are typically too bulky for highly integrated on-chip optical circuits, thus, compact photonic structures are in high demand. [83][84][85] Optical microcavities, with high quality (high-Q) factors, convenient all-optical control, and compatibility with on-chip fabrication, have been used extensively for sophisticated optical devices, such as isolators, [86] lasers, [87] circuits, [88] sensors, [89][90][91] and buffers, [92,93] with distinctive properties. Based on the similarities between the classical electromagnetism and quantum mechanics, a single cavity and coupled-cavity can be referred to as artificial photonic atom and photonic molecule, [94][95][96] respectively. Analogous to the single atom molecule, a single cavity can also be referred to as a photonic molecule. The spectral response arising from the coherent interaction of optical modes depends heavily on the configuration of the artificial photonic molecules. [97][98][99] Over the years, sorts of photonic molecules have been implemented as key building blocks for realizing Fano resonance, [83,85,[88][89][90][91]100,101] thanks to the interactions between optical modes as illustrated in Figure 1a. The Fano profiles have been both experimentally and theoretically studied with numerous interesting physical phenomena revealed by the coupled oscillator model, [83,86,102] temporal coupled-mode theory, [103][104][105][106][107] transfer matrix method, [108][109][110] and quantumoptics approach. [111,112] In this work, we focus on reviewing the Fano resonance in artificial photonic molecules. We first introduce the properties of Fano resonance. Specifically, we discussThe spectral signatures of chemical molecules are dependent on the hybridization of electronic states. The artificial photonic molecules formed by structured optical microcavities, exhibiting Fano features with sharp asymmetric line shape a...

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Ultracompact all-optical full-adder and half-adder based on nonlinear plasmonic nanocavities

Cited by 43 publications

References 55 publications

On‐Chip Dual Electro‐Optic and Optoelectric Modulation Based on ZnO Nanowire‐Coated Photonic Crystal Nanocavity

On‐Chip Dual Electro‐Optic and Optoelectric Modulation Based on ZnO Nanowire‐Coated Photonic Crystal Nanocavity

Plasmon-induced transparency effect for ultracompact on-chip devices

Fano Resonance in Artificial Photonic Molecules

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