Light transmission properties of double-overlapped annular apertures

Liu, Hailong; Wang, Na; Liu, Yonghong; Zhao, Yantao; Wu, Xijun

doi:10.1364/ol.36.000385

Cited by 21 publications

(13 citation statements)

References 14 publications

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“…In such XI cavities, the coherent near‐field coupling takes place between broad dipole and sharp quadrupole modes being excited in the cross, and excited dipole resonance in the bar . An alternative way to generate FR is by forming nanometric apertures in metallic thin films . Artar et al.…”

Section: Fr Generationmentioning

confidence: 99%

Fano resonance in novel plasmonic nanostructures

Rahmani

Luk’yanchuk

Hong

2012

Laser & Photonics Reviews

287

215

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We directly visualize and identify the capacitive coupling of infrared dimer antennas in the near field by employing scattering-type scanning near-field optical microscopy (s-SNOM). The coupling is identified by (i) resolving the strongly enhanced nano-localized near fields in the antenna gap and by (ii) tracing the red shift of the dimer resonance when compared to the resonance of the single antenna constituents. Furthermore, by modifying the illumination geometry we break the symmetry, providing a means to excite both the bonding and the "dark" anti-bonding modes. By spectrally matching both modes, their interference yields an enhancement or suppression of the near fields at specific locations, which could be useful in nanoscale coherent control applications.

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Section: Fr Generationmentioning

confidence: 99%

Fano resonance in novel plasmonic nanostructures

Rahmani

Luk’yanchuk

Hong

2012

Laser & Photonics Reviews

287

215

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“…1 Numerous nanostructures have been designed to form Fano resonances, such as metamaterials, 2,3 coupled nanoparticles, [4][5][6][7][8] and plasmonic clusters. [9][10][11][12][13] Given their asymmetric line shape, weak radiative damping, and strong sensitivity to the local environment, Fano resonances have been used for slow light, 2 enhanced light transmission, 14 biosensing, 4,15,16 surface enhanced Raman scattering (SERS), 17 and plasmonic switch. 18 In nanostructures with two or more dark subradiant modes, multiple Fano resonances can arise in the spectra, which have been observed in numerous systems such as multilayer oligomers, 19 nanoparticle clusters, [20][21][22][23][24] dual-disk ring cavities, 25 and plasmonic clusters with dielectric particles.…”

mentioning

confidence: 99%

Tuning multiple Fano resonances in plasmonic pentamer clusters

Liu

Zhang

Wang

et al. 2013

Applied Physics Letters

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Multiple Fano resonances in plasmonic pentamer clusters composed of nanorings are observed and investigated. Molecular point group theory is used to understand the formation of multiple Fano resonances. By modifying the radius of the center ring or the angle between the center and the surrounding rings, the modulation depths and the spectral positions of the multiple Fano resonances can be tuned within a wide range. For pentamers composed of split nanorings, another Fano resonance can be excited because of the excitation of the quadrupole mode of the surrounding split nanorings.

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“…In addition, the two-dimensional (2D) symmetric double ring resonators have been studied. It is demonstrated that the band-pass filter with two ring resonators has better sensitivity to the wavelength than one with a single ring resonator [20,21]. However, for the MIM waveguide structure discussed in their work, the two MIM waveguides are symmetrically situated on both sides of the two rings.…”

Section: Introductionmentioning

confidence: 97%

The Filter Characteristic Research of Metal-Insulator-Metal Waveguide with Double Overlapping Annular Rings

et al. 2015

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A metal-insulator-metal (MIM) waveguide with double overlapping annular rings is proposed, and its transmission properties are simulated and characterized by the finite element method. The results show that the transmission valley appears in the transmission spectra when the straight MIM waveguide output port has a positional angular deviation θ relative to the incident port. Compared with the symmetric structure (θ=0°), the filtering properties of the asymmetric structures (θ>0°) are greatly improved. And compared to the MIM waveguide with single ring resonator, the filter characteristic of MIM waveguide with the double overlapping rings is superior to that of single ring resonator. For the asymmetric structure, due to the fact that parts of coupled MIM waveguide output port locates at the magnetic nodes of the standing waves in the ring resonator, there is a transmission minimum. Moreover, the asymmetric MIM waveguide can easily detect the refractive index changes of the filled media inside of resonator cavities, its potential applications in sensors.

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Light transmission properties of double-overlapped annular apertures

Cited by 21 publications

References 14 publications

Fano resonance in novel plasmonic nanostructures

Fano resonance in novel plasmonic nanostructures

Tuning multiple Fano resonances in plasmonic pentamer clusters

The Filter Characteristic Research of Metal-Insulator-Metal Waveguide with Double Overlapping Annular Rings

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