Efficient and Directional Excitation of Surface Plasmon Polaritons by Oblique Incidence on Metallic Ridges

Pisano, Eduardo; Garcia-Ortiz, Cesar E.; Armenta-Monzon, Fabiola; Méndez, Manuel García; Coello, Víctor

doi:10.1007/s11468-018-0708-4

Cited by 9 publications

(4 citation statements)

References 19 publications

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“…Así, el hecho de que los PSs representen ondas en dos dimensiones permite que puedan ser usados para observar los fenómenos de localización (paralelos a la superficie de metal) como consecuencia del fuerte esparcimiento elástico que sufren en una superficie con una rugosidad relativamente grande. Un caso particular de estudio es la inhibición de la propagación del PS en regiones de superficie con nanopartículas distribuidas espacialmente al azar y el guiado de estos modos en regiones libres de estas partículas (Pisano et al, 2018). El efecto es similar al de PBG y se ha caracterizado usando LRM logrando estructuras clásicas como guías de onda, divisores de haz y mucho más complejas como un espectropolarímetro bidimensional (Chen et al, 2018).…”

Section: Trabajos Pionerosunclassified

Nanofotónica. Los grandes avances y retos de un mundo pequeño

Coello

2019

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Se presenta una panorámica general del desarrollo de la nanofotónica a nivel global. Se exponen los desarrollos pioneros y los problemas que los mismos enfrentaron. También se comentan de manera general las tendencias actuales y se describe cuáles son los principales motivos que impiden un desarrollo terminado y cuáles son las estrategias para superarlos. Finalmente, se muestra de manera descriptiva la situación actual de esta área en México.

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Section: Trabajos Pionerosunclassified

Nanofotónica. Los grandes avances y retos de un mundo pequeño

Coello

2019

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“…However, the field confinement of these reported metamaterials are relatively weak and exhibit high intrinsic dissipative losses with strong damping of surface plasmons and slow damage by chemical action [7]. To overcome these shortcomings, improvement research of new physical mechanisms and better electronic and optical properties has been achieve for new plasmonic materials, among them, graphene has emerged as an alternative, unique twodimensional material able to extend the field of plasmonics for terahertz to mid-infrared applications [8][9][10][11]. Graphene, a two-dimensional material made of carbon atoms arranged in hexagonal lattice has attracted tremendous attention due to its physical properties including high electrical and thermal conductivity, optical transparency and controllable plasmon properties.…”

Section: Introductionmentioning

confidence: 99%

Plasmon Resonances of Graphene-Dielectric-Metal Structures Calculated by the Method of Recurrence Relations

Cruz

Oliva-Leyva

2021

Plasmonics

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Graphene supports surface plasmons in the therahertz range, and compared with noblemetal plasmons, they show an extreme level of field confinement and relatively long propagation distances, with the advantage of being highly tunable via electrostatic field.Nevertheless, its interaction with light is normally rather weak. To obtain a more powerful capability of excite plasmons, a combination of graphene and artificial structures (metamaterials) present a powerful tunability for enhancing light-matter interaction.These features make graphene metamaterials a promising candidate for plasmonics and surface plasmon resonance for biological sensors. In this work, we study the plasmon spectra in a finite number of graphene layers on a metallic-dielectric substrate surrounded by materials with different dielectric constants. It is shown that using standard electromagnetic boundary conditions and solving the recurrence relation (a suitable alternative to transfer matrix method) for the coefficients of the electric potential between graphene layers, an explicit effective dielectric function of the metamaterial can be obtained giving the plasmon dispersion relations. It is found that the metal-dielectriclayered graphene structure supports both, high-energy optical plasmons oscillations and out-of-phase low energy acoustic charge density excitations. Experimentally, the Kretschmann configuration can be used to excite the surface plasmon resonances. It is based on the observation of a sharp minimum in the reflection coefficient versus angle (or wavelength) curve.

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“…Most studies adopt the latter technique in the experiments and the excitation light is normally incident on the metal surface for convenience. However, the spatial frequency determined by the incident angle of excitation light can significantly affect the amplitude and phase of the generated SPPs [24][25][26]. By modulating the polarization, amplitude, and phase of the excitation light [15,[27][28][29][30][31][32][33], dynamical SPP devices have been extensively studied.…”

Section: Introductionmentioning

confidence: 99%

Dynamically Modulating Plasmonic Field by Tuning the Spatial Frequency of Excitation Light

et al. 2020

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Based on the Fourier transform (FT) of surface plasmon polaritons (SPPs), the relation between the displacement of the plasmonic field and the spatial frequency of the excitation light is theoretically established. The SPPs’ field shifts transversally or longitudinally when the spatial frequency components f x or f y are correspondingly changed. The SPPs’ focus and vortex field can be precisely located at the desired position by choosing the appropriate spatial frequency. Simulation results are in good agreement with the theoretical analyses. Dynamically tailoring the plasmonic field based on the spatial frequency modulation can find potential applications in microparticle manipulation and angular multiplexed SPP focusing and propagation.

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Efficient and Directional Excitation of Surface Plasmon Polaritons by Oblique Incidence on Metallic Ridges

Cited by 9 publications

References 19 publications

Nanofotónica. Los grandes avances y retos de un mundo pequeño

Nanofotónica. Los grandes avances y retos de un mundo pequeño

Plasmon Resonances of Graphene-Dielectric-Metal Structures Calculated by the Method of Recurrence Relations

Dynamically Modulating Plasmonic Field by Tuning the Spatial Frequency of Excitation Light

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