Versatile and tunable surface plasmon polariton excitation over a broad bandwidth with a simple metaline by external polarization modulation

You, Oubo; Bai, Benfeng; Sun, Lin; Shen, Biyao; Zhu, Zhihong

doi:10.1364/oe.24.022061

Cited by 8 publications

(5 citation statements)

References 20 publications

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“…These polarizationsensitive nanostructure arrays include aperture array [34], F-shaped nanoslits [35], D-shaped nano-antennas [36,37], multi-lined distribution nanoslits array [29,38], crossshaped nanoantennas [30], V-shaped nanoslits array [39], ring-shaped hologram consisting of slit-pair array [40], C-shaped apertures array [41,42], and multiple rings of nanoslits with special orientations [32]. These studies demonstrate that, by properly designing the spatial orientation of a nanostructure array, the phase of SPPs waves was controlled to reconstruct arbitrary new SPBs wavefront profiles [43].…”

mentioning

confidence: 99%

Manipulating surface plasmon polaritons with M-shaped nanoslit array via polarized incident waves

Li¹,

Tang²,

Yang³

et al. 2019

EPL

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Surface plasmonic bending beams (SPBs), which preserve their spatial shapes while propagating along the desired curved trajectories in a metal-dielectric interface, offer important applications in the fields of fiber sensors, optical trapping, and micro-nano fabrication. In this work, the straight-lined, single-curved and double mirror-symmetric curved distributions of M-shaped nanoslit arrays are designed on a metal film to generate SPBs. These SPBs include unidirectional coupling of SPPs, single arbitrary bending beams, and double arbitrary bending beams. The electric-field intensity and the propagation directions of these SPBs are controlled by the polarization angle of input light waves. Especially, the reverse propagation of unidirectional coupling of arbitrary SPBs is generated by the polarization angles 45° and 135°. These findings provide guidance in the design and optimization of plasmonic bending beam generators.

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confidence: 99%

Manipulating surface plasmon polaritons with M-shaped nanoslit array via polarized incident waves

Li¹,

Tang²,

Yang³

et al. 2019

EPL

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“…In 2016, You et al proposed the design of a metaline consisting of normalΔ-shaped slot resonators [see Fig. 6(d)], which can effectively realize dual functionalities, i.e., tunable directional SP excitation at an arbitrarily chosen wavelength and complete unidirectional SP excitation over a broad bandwidth [227] . The corresponding experimental results of polarization-controlled tunable directional SP excitation are shown in Fig.…”

Section: Coupling Devicesmentioning

confidence: 99%

“…Reproduced with permission from Ref. [227], © 2016 OSA. (f), (g) Schematic of spin-controlled unidirectional coupling of SPs based on perpendicularly arranged slit resonators (f); SEM images and measurement results under different incidences (g).…”

Section: Coupling Devicesmentioning

confidence: 99%

Meta-optics inspired surface plasmon devices

Lang

Jiang

et al. 2023

Photonics Insights

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Surface plasmons (SPs) are electromagnetic surface waves that propagate at the interface between a conductor and a dielectric. Due to their unique ability to concentrate light on two-dimensional platforms and produce very high local-field intensity, SPs have rapidly fueled a variety of fundamental advances and practical applications. In parallel, the development of metamaterials and metasurfaces has rapidly revolutionized the design concepts of traditional optical devices, fostering the exciting field of meta-optics. This review focuses on recent progress of meta-optics inspired SP devices, which are implemented by the careful design of subwavelength structures and the arrangement of their spatial distributions. Devices of general interest, including coupling devices, on-chip tailoring devices, and decoupling devices, as well as nascent SP applications empowered by sophisticated usage of meta-optics, are introduced and discussed.

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“…For example, Wen et al obtained the coupling efficiency tunability by using corrugated Ag-Al alloy electrode with the fixed periodicity and controlling with electric voltage [11]. The control of propagation directions of SPP, i.e., right-traveling or lefttraveling, has been introduced by Lin et al and You et al by modulating the polarization of incident radiation [12], [13]. In addition, Liu et al proposed a structure that combined dielectric gratings, graphene, and electron beams that obtained coupling frequency tunability by controlling the bias voltage applied to graphene [14].…”

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confidence: 99%

Surface Plasmon Polaritons in Time-Modulated Metallic Materials for Non-Reciprocal Controllable Leaky-Wave Antennas

Dinh

2022

IEEE Access

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In this work, we propose using time-modulation in metallic materials, which can be realized through either optical pumps or electric signals, as a coupling mechanism between radiation and surface plasmon polaritons (SPP) without using any optical component. By applying temporal changes in the permittivity of metallic materials, scattered waves yield different frequencies from incident waves, potentially satisfying the continuous wave vector condition and enabling SPP from radiation. The coupling is observed in finite-difference time-domain simulations, where the dispersive metallic materials are modeled using auxiliary differential equations. Under the same modulation, coupling from radiation to SPP and from SPP to radiation differ strongly, showing clear evidence of the non-reciprocity. In addition, the coupling is also actively controllable via strength and frequency modulation. We also demonstrate the coupling at multiple angles, which is difficult to achieve with common methods such as Kretschmann or Otto configurations. The direct and non-reciprocal coupling between radiation and SPP can be beneficial for the application of telecommunication to form transmitting-only and receiving-only leaky-wave antennas in full-duplex transceivers.INDEX TERMS Finite-difference time-domain, leaky waves, non-reciprocity, surface plasmon polariton, time-modulation. I. INTRODUCTIONSurface plasmon polariton (SPP) is a special mode of electromagnetic wave that propagates at the interface between a metal and an insulator [1]. SPP can be formed in various ways but the most common one is from radiation. This coupling effectively turns the interface into an antenna which is a key component in communication. In addition, being highly directive and tightly confined at the interface [2], SPP decays exponentially in the direction normal to its propagating axis, offering a vast potential in communication in general and secured communication in particular.Unfortunately, SPP cannot directly couple to radiation without intermediate optical components. In many cases, prisms are often used to create SPP. The main idea is to match the wave vector of SPP tangential to the interface with that of radiation, satisfying the boundary condition and facilitatingThe associate editor coordinating the review of this manuscript and approving it for publication was Pavlos I. Lazaridis .

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Versatile and tunable surface plasmon polariton excitation over a broad bandwidth with a simple metaline by external polarization modulation

Cited by 8 publications

References 20 publications

Manipulating surface plasmon polaritons with M-shaped nanoslit array via polarized incident waves

Manipulating surface plasmon polaritons with M-shaped nanoslit array via polarized incident waves

Meta-optics inspired surface plasmon devices

Surface Plasmon Polaritons in Time-Modulated Metallic Materials for Non-Reciprocal Controllable Leaky-Wave Antennas

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