Metasurface Lens for both Surface Plasmon Polaritons and Transmitted Wave

Wang, Sen; He, Jingwen; Qu, Shiliang; Zhang, Yan

doi:10.1007/s11468-016-0306-2

Cited by 9 publications

(7 citation statements)

References 25 publications

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“…9(h)]. Short after, S. Wang et al demonstrated that a similar design strategy of the spin-dependent focusing of SPs can also be applied to the THz frequency [261] . In the same year, G. Spektor et al proposed and experimentally demonstrated that by arranging the slit-pair into an Archimedes' spiral shape [see Fig.…”

Section: Sp Tailoring In the Coupling Processmentioning

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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Section: Sp Tailoring In the Coupling Processmentioning

confidence: 99%

Meta-optics inspired surface plasmon devices

Lang

Jiang

et al. 2023

Photonics Insights

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“…The previously used MSs enabled manipulation of only one polarization, [27][28][29][30][31][32][33][34][35][36][37][38] which may have significantly hindered its potential applications. Different functionalities in different polarization modes are imposed to enhance the functional capacity of MS.…”

Section: Structure Simulation and Theoretical Analysismentioning

confidence: 99%

“…[15][16][17][18][19][20][21][22][23][24][25][26] Fan et al proposed an MS that could achieve reflection and transmission CP wave operating at two frequency points. [27] The independent amplitude and phase profiles of the designed MS can be obtained by varying the geometrical parameters of the unit-cell structure, vortex beam carrying orbital angular momentum (OAM), [28][29][30][31][32] abnormal refraction, [33] and focusing lens [34][35][36][37][38][39][40] have been studied at the interest frequencies. Bao et al proposed an MS that manipulated independently linearly polarized (LP) waves at 7 and 17 GHz.…”

Section: Introductionmentioning

confidence: 99%

Terahertz Transmission‐Type Metasurface for the Linear and Circular Polarization Wavefront Manipulation

Cheng

2022

Advcd Theory and Sims

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A transmission‐type metasurface (MS) based on the combined geometric and transmission phase is proposed and investigated here numerically, which can achieve independently manipulation of the circular polarization (CP) and linear polarization (LP) wavefront at terahertz (THz) region. The unit‐cell of the proposed MS is composed of the dielectric substrate sandwiched with the bilayered inner centrosymmetric‐notched‐elliptic (CNE), outer C‐shaped, and single‐split‐ring (SSR) structures. The proposed MS can convert the normal incident LP wave to its orthogonal one at the lower frequency (f1 = 0.68 THz) after transmission and left‐handed circular polarization to the transmitted right‐handed circular polarization wave or vice versa at the higher frequency (f2 = 1.34 THz). The full 2π phase shifts of the both transmitted LP and CP waves can be realized independently and simultaneously by varying the opening and orientation angles of the outer SSR structure based on the transmission phase and the orientation angle of the inner CNE structure based on geometric phase, respectively. As proofs of concept, anomalous refraction, planar focusing, and vortex beam generation for both LP and CP waves are demonstrated numerically. These findings show great potential applications in imaging and communication systems, providing new possibilities to develop multifunctional THz device for both LP and CP waves.

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“…Therefore, the plasmons then can be generated by appropriate excitation method. [49][50][51][52][53][54] Since the surface conducting state decides the final plasmon state, we therefore used the Drude model to describe the process of generating SPPs as metal. We calculated the available wavelength of the generated SPPs 𝜆spp and the distance 𝛿spp that the SPPs can propagate before dissipation according to the dielectric constant.…”

Section: The Properties Of Dielectric Function In Bi 2 Te 3 Filmmentioning

confidence: 99%

Near‐Field Plasmons Imaging and Energy Analysis on Bi₂Te₃ Film

Yan

Qiao

et al. 2022

Annalen der Physik

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Topological materials have great potential in lossless electronic transportation. Bi 2 Te 3 as three-dimensional (3D) topological insulator is predicted to exhibit many amazing electromagnetic characteristics, which are widely studied all over the world. However, current research available on Bi 2 Te 3 materials is not adequate, and a comprehensive understanding of its properties is necessary. In this work, near-field plasmon imaging based on Bi 2 Te 3 nanostructures and the kinetic energy spectra of emitted electrons from Bi 2 Te 3 film by using photoemission electron microscope instruments is studied. Under UV laser excitation of 273 nm, the electrons can be excited from the trap states in bandgap, which provides a feasible idea for observing the trap energy levels of Bi 2 Te 3 materials. Moreover, the imaging applications of nanostructures in Bi 2 Te 3 film based on their polarization-dependence and wavelength-dependence properties are also demonstrated, providing a more degrees of freedom for imaging, and can realize multidimensional and multi-multiplexing imaging technology of topological materials. This work provides a novel method to enrich the Bi 2 Te 3 film properties from the view of near-field plasmon imaging and kinetic energy distribution, paving the way for realizing practical applications of topological materials.

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Metasurface Lens for both Surface Plasmon Polaritons and Transmitted Wave

Cited by 9 publications

References 25 publications

Meta-optics inspired surface plasmon devices

Meta-optics inspired surface plasmon devices

Terahertz Transmission‐Type Metasurface for the Linear and Circular Polarization Wavefront Manipulation

Near‐Field Plasmons Imaging and Energy Analysis on Bi₂Te₃ Film

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Metasurface Lens for both Surface Plasmon Polaritons and Transmitted Wave

Cited by 9 publications

References 25 publications

Meta-optics inspired surface plasmon devices

Meta-optics inspired surface plasmon devices

Terahertz Transmission‐Type Metasurface for the Linear and Circular Polarization Wavefront Manipulation

Near‐Field Plasmons Imaging and Energy Analysis on Bi2Te3 Film

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Product

Resources

About

Near‐Field Plasmons Imaging and Energy Analysis on Bi₂Te₃ Film