Ultra-short plasmonic splitters and waveguide cross-over based on coupled surface plasmon slot waveguides

Fang, Yijiao; Chen, Zhuo; Chen, Ling; He, Kaiting; Han, Zhiyong; Wang, Zhenlin

doi:10.1364/oe.19.002562

Cited by 7 publications

(3 citation statements)

References 39 publications

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“…In this way, the forward propagating plasmonic mode from the feedback loop is coupled counter-directionally into the nonlinear waveguide which has a backward propagating mode [27]. This parameter was optimized such that in the range of operating frequencies a complete energy transfer between the feedback loop and the nonlinear waveguide is realized.…”

Section: A Layout Of the Stucturementioning

confidence: 99%

Self-Pulsation in a Nonlinear Plasmonic Ring Resonator

Kusko

2013

IEEE J. Quantum Electron.

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We demonstrate the self-pulsing behavior in a nonlinear all-pass plasmonic microring resonator (MRR). The structure consists of a nonlinear metal-dielectric-metal (MDM) plasmonic waveguide and supports antisymmetric, backward propagating slow-modes. The slow modes are coupled to a feedback loop realized from a MDM waveguide, which supports symmetric, forward propagating fast modes. We calculate the temporal response of the system with a finite difference time domain method and show a SP behavior for input fields higher than a critical value. We perform a semi-quantitative description of the self-pulsation by solving iteratively, in time domain, the Ikeda equation of an all-pass MRR presenting a nonlinear phase shift. For this system, the pulses have a period of 300 fs with a modulation factor of 0.3. This configuration could be applied as a source of continuous wave terahertz radiation or as an optical clock in highly integrated plasmonic circuits.

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Section: A Layout Of the Stucturementioning

confidence: 99%

Self-Pulsation in a Nonlinear Plasmonic Ring Resonator

Kusko

2013

IEEE J. Quantum Electron.

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“…The multimode cavity (w 2 = 700 nm) can support two TM modes for λ = 1310 nm. The dispersion equations of the first two modes in the MIM can be obtained by solving the following equations [16] …”

Section: Physical Modelmentioning

confidence: 99%

Unidirectional plasmonic propagation of a metal-insulator-metal splitter with a multimode cavity

Wang

2019

Laser Phys.

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A T-shaped metal-insulator-metal structure with a multimode cavity is investigated in a communication region. An s-mode (TM 0 ) propagates from the incoming arm and is coupled into an s-mode and an a-mode (TM 1 ). After propagating along the multimode cavity, the two modes are scattered into s-modes in the two outgoing arms, respectively. Our structure is able to achieve a unidirectional propagation of s-modes in the two outgoing arms under specified parameters (the position of the incoming arm and the length of the multimode cavity). The unidirectional plasmonic propagation phenomenon originates from two mechanisms. One is on account of different linear combinations of the s-modes and a-modes. The other is based on a self-imaging effect of multimode interference. Numerical simulations based on the finite element method verify our design method.

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“…[1][2][3][4] One of two major applications is biosensing, which is a well studied and commercially successful technology. 9-15 SP is a promising scheme 16,17 for highly compact integrated photonic circuits, [18][19][20][21] and the integration density is far beyond the conventional index guiding scheme. 9-15 SP is a promising scheme 16,17 for highly compact integrated photonic circuits, [18][19][20][21] and the integration density is far beyond the conventional index guiding scheme.…”

Section: Introductionmentioning

confidence: 99%

Optical performance of long-range air-gaps assisted subwavelength waveguides

Liang

Zhou

et al. 2014

Opt. Eng

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A long-range air-gaps assisted subwavelength waveguide is proposed and demonstrated. The configuration can be interpreted as a combination of a silicon waveguide and a metal-dielectric-metal (MDM) waveguide. Unlike the conventional MDM waveguide, the proposed waveguide is polarization insensitive because long propagation lengths can be achieved by both the transverse electric (TE) and transverse magnetic (TM) polarizations. The propagation length of this waveguide can even be up to decimeters. Moreover, this design is very compact with only a 1.05 μm center-to-center separation between two adjacent waveguides, while the waveguide isolation is >58 dB. Also, it is capable of guiding light effectively (>97% transmittance) through a 90 deg bend with a small bending radius (1 μm). These unique features make the proposed waveguide a promising candidate for the future large-scale photonic integrated circuits.

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Ultra-short plasmonic splitters and waveguide cross-over based on coupled surface plasmon slot waveguides

Cited by 7 publications

References 39 publications

Self-Pulsation in a Nonlinear Plasmonic Ring Resonator

Self-Pulsation in a Nonlinear Plasmonic Ring Resonator

Unidirectional plasmonic propagation of a metal-insulator-metal splitter with a multimode cavity

Optical performance of long-range air-gaps assisted subwavelength waveguides

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