Narrow-area average method for measurement of the propagation length of surface plasmon polaritons using nanoslit-grating structures

Dong, Jie; Zhang, Chen; Yang, Haiguang

doi:10.1016/j.rinp.2022.106185

Cited by 3 publications

(1 citation statement)

References 48 publications

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“…The propagation distance of SPPs on the substrate is up to 14.510 μm (∼27 λ 0 ). The propagation length in this paper has been increased compared to the SPPs propagation distances of approximately 3-7 μm (∼5-11 λ 0 , λ 0 = 633 nm) in Ag nanowire on Si substrate in reference [34] and 9.88 μm (∼15 λ 0 , λ 0 = 632.8 nm) on Au films in reference [35]. To further investigate the performance of SPP 2 , the normalized maximum electric field values of SPP 1 and SPP 2 were compared.…”

Section: The Performance Of Spps On the Substratementioning

confidence: 90%

Enhance the detection of surface micro/nanostructures by SPPs generated from silver film covered hemi-microsphere

Ren,

Huang,

Wen

et al. 2024

Phys. Scr.

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Surface plasmon polaritons (SPPs) are widely used for surface micro/nanostructures detection. However, because of the limitations of the common SPPs excitation conditions, it is difficult to flexibly detect surface micro/nanostructures in the air without being limited by the substrate structure. In this paper, a new SPPs excitation structure is developed. This structure is a silver film covered hemi-microsphere. SPPs could be excited on the surface of the Ag film, and induce collective oscillations of free electrons on the substrate surface to generate periodic electromagnetic waves. The periodic electromagnetic waves can enhance the electromagnetic field around the surface micro/nanostructures, which could benefit the detection of those surface micro/nanostructures. This method could work in the air, and requires less of the sample structure, but also could move above the sample to achieve a large range of detection. Simulation experiment results demonstrate that this structure has a good detection effect. The maximum enhancement achieved for nanoparticles is 113-fold. This structure holds great potential for medical detection and biosensing.

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Section: The Performance Of Spps On the Substratementioning

confidence: 90%

Enhance the detection of surface micro/nanostructures by SPPs generated from silver film covered hemi-microsphere

Ren,

Huang,

Wen

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

show abstract

Design of large-deflection-angle high-diffraction-efficiency high-dispersion hybrid gratings

Dong,

Kuang,

Cao

et al. 2024

Optics Communications

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Dynamic tailoring large-area surface plasmon polariton excitation

Peña Ramírez,

Zhai,

Salas-Montiel

et al. 2024

J. Opt.

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We propose and demonstrate a method for dynamically changing the patterning of the surface plasmon polariton (SPP) excitation over a large area under spatially inhomogeneous polarized illumination. By illuminating a 1D gold grating with shallow rectangular grooves with a spatially structured polarization beam of near-infrared light (780 nm), we selectively excited SPPs on an extended area. The parameters used to fabricate the grating coupler, matched the wave vector of the incident light with that of the SPP to achieve an efficient coupling. The incident wave illuminating the grating is a spatially inhomogeneous polarized beam. We designed local polarization states to control the local excitation of the SPP in order to pattern large areas. For real-time local control of the polarization state of the extended incident beam, we used a setup with a spatial light modulator and quarter-wave plate.

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Narrow-area average method for measurement of the propagation length of surface plasmon polaritons using nanoslit-grating structures

Cited by 3 publications

References 48 publications

Enhance the detection of surface micro/nanostructures by SPPs generated from silver film covered hemi-microsphere

Enhance the detection of surface micro/nanostructures by SPPs generated from silver film covered hemi-microsphere

Design of large-deflection-angle high-diffraction-efficiency high-dispersion hybrid gratings

Dynamic tailoring large-area surface plasmon polariton excitation

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