All-Optical switching in metal nanoparticles plasmonic waveguide using EIT phenomenon

Foroutan, Sina; Rostami, G.; Dolatyari, Mahboubeh; Rostami, Ali

doi:10.1016/j.ijleo.2016.12.051

Cited by 11 publications

(4 citation statements)

References 29 publications

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“…Similar all-optical switching arrangements are based on Mach-Zehnder interferometry [101,102]. Other schemes make use of semiconductor nanoparticles [103][104][105], nanoplasmonic waveguides [106][107][108][109], fiber Bragg gratings [110][111][112] or nanocavities in photonic crystals to strongly enhance optical nonlinearities [113,114]. Moreover, based on irradiation of rubidium vapor, there is a development that uses counter-propagating laser beams to induce an optical pattern that rotates on application of a switching laser [115].…”

Section: Discussionmentioning

confidence: 99%

Off-Resonance Control and All-Optical Switching: Expanded Dimensions in Nonlinear Optics

Forbes

Andrews

2019

Applied Sciences

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The theory of non-resonant optical processes with intrinsic optical nonlinearity, such as harmonic generation, has been widely understood since the advent of the laser. In general, such effects involve multiphoton interactions that change the population of each input optical mode or modes. However, nonlinear effects can also arise through the input of an off-resonant laser beam that itself emerges unchanged. Many such effects have been largely overlooked. Using a quantum electrodynamical framework, this review provides detail on such optically nonlinear mechanisms that allow for a controlled increase or decrease in the intensity of linear absorption and fluorescence and in the efficiency of resonance energy transfer. The rate modifications responsible for these effects were achieved by the simultaneous application of an off-resonant beam with a moderate intensity, acting in a sense as an optical catalyst, conferring a new dimension of optical nonlinearity upon photoactive materials. It is shown that, in certain configurations, these mechanisms provide the basis for all-optical switching, i.e., the control of light-by-light, including an optical transistor scheme. The conclusion outlines other recently proposed all-optical switching systems.

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Section: Discussionmentioning

confidence: 99%

Off-Resonance Control and All-Optical Switching: Expanded Dimensions in Nonlinear Optics

Forbes

Andrews

2019

Applied Sciences

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“…Integrated hybrid photonic–plasmonic devices are systems that combine dielectric photonic waveguides with plasmonic nanostructures, reducing intrinsic optical losses when light propagates through metals [ 1 , 2 , 3 , 4 , 5 , 6 ]. These hybrid systems have been employed for different on-chip applications, such as subwavelength-guided modes with continuous and periodic plasmonic nanostructures [ 7 , 8 , 9 , 10 , 11 , 12 , 13 ], optical switching devices [ 14 , 15 , 16 ], nanoscale light sources [ 17 , 18 , 19 ], structured light generation [ 20 ], second harmonic generation [ 21 ], and wavelength and mode converters [ 22 , 23 , 24 ], to mention a few.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic-Induced Transparencies in an Integrated Metaphotonic System

et al. 2022

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In this contribution, we numerically demonstrate the generation of plasmonic transparency windows in the transmission spectrum of an integrated metaphotonic device. The hybrid photonic–plasmonic structure consists of two rectangular-shaped gold nanoparticles fully embedded in the core of a multimode dielectric optical waveguide, with their major axis aligned to the electric field lines of transverse electric guided modes. We show that these transparencies arise from different phenomena depending on the symmetry of the guided modes. For the TE0 mode, the quadrupolar and dipolar plasmonic resonances of the nanoparticles are weakly coupled, and the transparency window is due to the plasmonic analogue of electromagnetically induced transparency. For the TE1 mode, the quadrupolar and dipolar resonances of the nanoparticles are strongly coupled, and the transparency is originated from the classical analogue of the Autler–Townes effect. This analysis contributes to the understanding of plasmonic transparency windows, opening new perspectives in the design of on-chip devices for optical communications, sensing, and signal filtering applications.

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“…Due to the coupling between photons and free electron density oscillation of the metal, the localized surface plasmon resonance are excited at the surface of metal-dielectric interfaces produces extremely localized enrichment and it can be offer tight light confinement and guidance of electromagnetic waves (EWs) below the diffraction limit [3][4][5][6][7], and hence, resolves the issue of diffraction limit. Plasmonic mechanism allows the optical signal/data propagate through the true-nano scale regions (<100 nm) [8][9][10][11][12], but suffers from high propagation losses due to the presence of metal. The recently proposed hybrid plasmonic based wave guiding mechanism, which combines the wave guiding properties of dielectric and plasmonic waveguides [13][14][15], is capable to resolve their respective issues of diffraction limit and large propagation loss.…”

Section: Introductionmentioning

confidence: 99%

Design of Nanoscale Hybrid Insulator-Metal-Insulator Plasmonic Waveguide

Kumar

Singh

Ranjan

2021

Silicon

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Optical properties of the fundamental hybrid mode of hybrid insulator-metal-insulator plasmonic waveguide (HIMIPW), consists of insulator-metal-insulator sandwiched between two dielectric waveguides, have been investigated to achieve the relatively high propagation length and large normalized intensity at 1.55 µm working wavelength. The main aim of the current work is to settle the issues of high power loss and size of waveguide dimension. The optimum waveguide dimension of 0.2 µm × 0.02 µm has been obtained propagation length around 289.26 µm. The normalized intensity in the low-index region of the HIMIPW has been achieved around 67.50 −2 , due to the electric field enhancement in this region. It is beneficial for the design of biosensing, optical manipulations, etc. The electric field intensity has been attained highest values at wavelength 1.55 µm for the optimum dimension of the HIMIPW ( = 0.2 µm, ℎ = 0.2 µ , and = 0.02 µ ), due to highly localized surface plasmon resonance at the metal-dielectric interfaces. The investigation of the coupling length between the two identical parallel HIMIPWs with a separation distance has been done. Further to improve the coupling length, a metallic strip has been inserted between them, keeping the separation distance unchanged. The higher coupling length leads to lower crosstalk between two parallel hybrid plasmonic waveguides, which can be highly useful to achieve the larger integration over the photonic chip.

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All-Optical switching in metal nanoparticles plasmonic waveguide using EIT phenomenon

Cited by 11 publications

References 29 publications

Off-Resonance Control and All-Optical Switching: Expanded Dimensions in Nonlinear Optics

Off-Resonance Control and All-Optical Switching: Expanded Dimensions in Nonlinear Optics

Plasmonic-Induced Transparencies in an Integrated Metaphotonic System

Design of Nanoscale Hybrid Insulator-Metal-Insulator Plasmonic Waveguide

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