Nonmagnetic Spoof Plasmonic Isolator Based on Parametric Amplification (Laser Photonics Rev. 16(4)/2022)

Gao, Xinxin; Zhang, Jingjing; Qian, Ma; Cui, Wen Yi; Ren, Yang; Luo, Yan; Cui, Tie Jun

doi:10.1002/lpor.202270020

Cited by 6 publications

(7 citation statements)

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“…[ 7,8 ] Compared to conventional waveguides, such as microstrip in microwave frequencies, the SSPP waveguide can effectively suppress crosstalks between different waveguides when signals are transmitted in parallel. [ 9–12 ] Benefiting from these advantages, some SSPP‐based circuit components have been designed and demonstrated experimentally on the spoof plasmonic platform, [ 13–18 ] such as reconfigurable SSPP parametric amplifier, [ 13 ] nonmagnetic spoof plasmonic isolator, [ 14 ] and wireless body sensor networks. [ 15 ] In general, most research efforts on reconfigurable SSPP devices, usually by integrating active chips, are mainly focused on the physical phenomena and the manipulations of surface EM waves in an analog way, neglecting the digital‐programmable potentials.…”

Section: Introductionmentioning

confidence: 99%

Reprogrammable Spoof Plasmonic Modulator

Gao

et al. 2023

Adv Funct Materials

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Driven by increasing demands for the ultra-compact interconnects of integrated electronics and the ultrafast information transfer of communication systems, research on spoof plasmonic metamaterials has attracted considerable attention. However, most efforts to date have been only achieved in individual modulation of amplitude or phase at a single frequency because of the limitation of structural design. Herein, an ultra-thin reprogrammable modulator consisting of a spoof surface plasmonic polariton (SSPP) waveguide and spoof localized surface plasmon (SLSP) resonators is proposed and experimentally demonstrated. It allows controlling the amplitudes and phases of surface waves independently. By simultaneously manipulating the SSPP waveguide and SLSP resonators in real time, different modulations are realized in a programmable way, such as amplitude-shift keying, phase-shift keying, quadrature amplitude modulation, and frequency-shift keying. Measured results confirm that the reprogrammable plasmonic metamaterial can modulate the surface electromagnetic waves, holding promising applications in integrated circuits and communication systems.

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Section: Introductionmentioning

confidence: 99%

Reprogrammable Spoof Plasmonic Modulator

Gao

et al. 2023

Adv Funct Materials

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“…[ 11 ] Motivated by these merits, some SSPP devices have been designed and demonstrated experimentally in microwave frequencies. [ 12–23 ] Moreover, compared to the conventional microstrips, the SSPP transmission lines can be packaged in a high‐density manner in circuit, where the crosstalk among parallel transmission lines can be effectively suppressed. [ 19–23 ] More importantly, the SSPP interconnects have been demonstrated a candidate to alleviate the limitations of the conventional electric and optical interconnects.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Terahertz Spoof Plasmonic Devices

Gao

Chen

Shum

et al. 2023

Adv Materials Technologies

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devices have been designed and demonstrated experimentally in microwave frequencies. [12][13][14][15][16][17][18][19][20][21][22][23] Moreover, compared to the conventional microstrips, the SSPP transmission lines can be packaged in a high-density manner in circuit, where the crosstalk among parallel transmission lines can be effectively suppressed. [19][20][21][22][23] More importantly, the SSPP interconnects have been demonstrated a candidate to alleviate the limitations of the conventional electric and optical interconnects. [20] This has promising applications for the next-generation wireless and on-chip THz communications.As the requirement for wireless bandwidth increases, THz communications have been investigated to provide faster processing speed and ultra-high data rates. [24][25][26][27][28][29] The demand for THz systems drives the development of highperformance THz devices. For example, a high-precision digital THz phase shifter was reported by employing a 2D electron gas perturbation unit coupled to a transmission line. [27] THz topological photonics waveguide for on-chip communications has also been proposed. [28] Additionally, as potential candidates for THz communications, some THz SSPP devices are explored and demonstrated experimentally from the fundamental interconnect to functional devices. [30][31][32][33][34][35][36] In fact, there are two structural forms that have been reported:

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“…Localized spoof surface plasmons (LSSPs) have been proposed to mimic the behaviors of localized surface plasmons (LSPs) and have exciting properties of subwavelength confinement DOI: 10.1002/adfm.202305789 and near-field enhancement. [1][2][3][4][5] They are supported by ultrathin textured metallic disks [6] and are excellent candidates for sensors, [7][8][9][10][11] wearable devices, [12][13][14] planar waveguides, [15][16][17] bandpass filters, [18,19] invisibility cloaks, [20][21][22][23][24][25][26][27] antennas, [28][29][30] vortex-beam emitters, [31][32][33][34] isolators, [35] circulators, [36] directional couplers, [37,38] quasi-bound states in the continuum (quasi-BICs) resonators, [39,40] rat-race couplers, [41] logic gates, [42] etc. They are divided into electric LSSPs [3] and magnetic LSSPs.…”

Section: Introductionmentioning

confidence: 99%

Localized Spoof Surface Plasmon Skyrmions Excited by Guided Waves

Yin

et al. 2023

Adv Funct Materials

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Recently, skyrmions are constructed in the system of localized spoof surface plasmons (LSSPs), showing topological robustness and near‐equidistant multi‐resonant response. Guided wave excitation of the LSSP skyrmions plays an elementary role in large‐scale planar integration and construction of complex networks. However, it is not investigated. In this study, the LSSP skyrmions are excited by guided waves supported by two kinds of widely used transmission lines, microstrip line and coplanar waveguide. Space‐coiling meta‐structures with different shapes that support LSSP skyrmions are etched on the ground planes as defected ground structures (DGSs). All structures including resonator, transmission line, input and output ports are in one plane. The structures are fabricated on printed circuit boards (PCBs) and the near‐equidistant multi‐resonant spectra of the LSSP skyrmions are measured. Moreover, to reduce the material loss, the structure is made on MgB2 superconducting film, and the quality factor (Q‐factor) is increased by seven times compared to the corresponding mode on PCB. This study paves the way for the massive planar integration of the LSSP skyrmions and the construction of complex networks with the LSSP skyrmions, and provides an idea for developing metasurfaces with low material loss in the microwave and terahertz bands.

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Nonmagnetic Spoof Plasmonic Isolator Based on Parametric Amplification (Laser Photonics Rev. 16(4)/2022)

Cited by 6 publications

References 0 publications

Reprogrammable Spoof Plasmonic Modulator

Reprogrammable Spoof Plasmonic Modulator

Multifunctional Terahertz Spoof Plasmonic Devices

Localized Spoof Surface Plasmon Skyrmions Excited by Guided Waves

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