Quantum optical switches and beam splitters with surface plasmons

Yan, Chenggang; Wei, L. F.

doi:10.1063/1.4748303

Cited by 16 publications

(6 citation statements)

References 23 publications

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“…Typically, the resonant photon ( = 0) has the same transmission probabilities, i.e., T H = R H = 0.25. This is the same as the situation for mode degenerate waveguides [35] and for two separated waveguides [36] coupled to a single two-level atom with symmetric coupling strengths. Simultaneously, these resonant probabilities are independent of waveguide-cavity interactions, which is contrast to the case of the single-mode cavity [shown in Fig.…”

Section: B Single-photon Scattering By a Cavity With Two Orthogonal mentioning

confidence: 70%

Controlling single-photon transport with three-level quantum dots in photonic crystals

2014

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We investigate how to control single-photon transport along the photonic crystal waveguide with the recent experimentally demonstrated artificial atoms [i.e.,-type quantum dots (QDs)] [S. G. Carter et al., Nat. Photon. 7, 329 (2013)] in an all-optical way. Adopting full quantum theory in real space, we analytically calculate the transport coefficients of single photons scattered by a-type QD embedded in single-and two-mode photonic crystal cavities (PCCs), respectively. Our numerical results clearly show that the photonic transmission properties can be exactly manipulated by adjusting the coupling strengths of waveguide-cavity and QD-cavity interactions. Specifically, for the PCC with two degenerate orthogonal polarization modes coupled to a-type QD with two degenerate ground states, we find that the photonic transmission spectra show three Rabi-splitting dips and the present system could serve as single-photon polarization beam splitters. The feasibility of our proposal with the current photonic crystal technique is also discussed.

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Section: B Single-photon Scattering By a Cavity With Two Orthogonal mentioning

confidence: 70%

Controlling single-photon transport with three-level quantum dots in photonic crystals

2014

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“…Power splitter is an essential component for integrated circuit and system, which is also an important part of antenna array. Several concepts achieving the split of guided plasmons have been studied, e.g., based on symmetrical gratings on both sides of nanostructures 17 18 , Y-shaped splitters 19 20 , T-shaped splitters 21 22 23 , and splitters related to the multimode interference 24 25 26 27 . However, two problems need to be solved in the above-mentioned power splitters: how to guarantee the transmission of generated SPPs in the desired branch, and how to split the power according to a desired proportion.…”

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confidence: 99%

Compact Feeding Network for Array Radiations of Spoof Surface Plasmon Polaritons

Yin

Zhang

et al. 2016

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We propose a splitter feeding network for array radiations of spoof surface plasmon polaritons (SPPs), which are guided by ultrathin corrugated metallic strips. Based on the coupled mode theory, SPP fields along a single waveguide in a certain frequency range can be readily coupled into two adjacent branch waveguides with the same propagation constants. We propose to load U-shaped particles anti-symmetrically at the ends of such two branch waveguides, showing a high integration degree of the feeding network. By controlling linear phase modulations produced by the U-shaped particle chain, we demonstrate theoretically and experimentally that the SPP fields based on bound modes can be efficiently radiated to far fields in broadside direction. The proposed method shows that the symmetry of electromagnetic field modes can be exploited to the SPP transmission network, providing potential solutions to compact power dividers and combiners for microwave and optical devices and systems.

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“…In NW-based nanophotonic devices, one of the significant issues is to precisely control the behaviours of SPPs propagation, especially the position where SPPs can be scattered into photons. This is essential for the performance of nanophotonic devices with special functions in NW-based waveguides, such as selective all-optical switch171819, remote SERS excitation20212223, and light source242526. For an individual NW without fabrication imperfections, SPPs can only be scattered into photons at the NW terminals, rather than the middle areas of NW.…”

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confidence: 99%

Control on Surface Plasmon Polaritons Propagation Properties by Continuously Moving a Nanoparticle along a Silver Nanowire Waveguide

Wang

Hua

et al. 2016

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Surface plasmon polaritons (SPPs)-based nanowire waveguides possess potential applications for nanophotonic circuits. Precise control on the propagation of SPPs in metal nanowires is thus of significant importance. In this work, we report the control on SPPs propagation properties by moving a silver nanoparticle (Ag NP) along a silver nanowire (Ag NW). The emission intensity at NP can be attenuated to about 25% of the maximum emission value with increasing the distance between excitation end and NP. When NP is gradually moved away from excitation end, the intensity of emission light at Ag NP shows an exponential decay with a superposition of wavy appearance, while the emission at NW end is almost a constant value. It is found that the former is related to the local SPPs field distribution in NW, and the latter is dependent on the distance between excitation end and NW terminal. Moreover, the propagation loss in Ag NP-NW structure has been investigated. Our experiments demonstrate the important role of NP location in NW-based waveguides and provide an effective method of tuning scattering light in NW, which is instructive to design the future specialized function of SPPs-based nanophotonic circuits and devices.

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Quantum optical switches and beam splitters with surface plasmons

Cited by 16 publications

References 23 publications

Controlling single-photon transport with three-level quantum dots in photonic crystals

Controlling single-photon transport with three-level quantum dots in photonic crystals

Compact Feeding Network for Array Radiations of Spoof Surface Plasmon Polaritons

Control on Surface Plasmon Polaritons Propagation Properties by Continuously Moving a Nanoparticle along a Silver Nanowire Waveguide

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