Long-ranging propagation based on resonant coupling effects using a series connection of ten nanoshells in a plasmon waveguide

Chau, Yuan-Fong Chou

doi:10.1364/ao.51.000640

Cited by 7 publications

(3 citation statements)

References 16 publications

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“…From this equation, it can be seen that if εA is negative and larger in magnitude than that of εs, then k is positive, real, and larger than ks=(ω/c)ε 1/2 -the wave number of bulk wave in medium SiO 2 . Therefore, SPPs are indeed surface waves, i.e., propagating along the surface and exponentially decaying into the surrounding media [41], [42].…”

Section: Design Results and Discussionmentioning

confidence: 99%

Design of an Ag Plasmonic Nanowire Waveguide with Long Propagation Distance

Chau¹

2014

IJSPS

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By coupling light to the charges at nanometal interfaces, surface plasmon (SP) enables researches to control photons in a way they have never done before: at the subwavelength level. Coupling of incident light through an air region into an Ag plasmonic nanowire waveguide (APNW) is a highly difficult challenge of light guiding on the surface of metal nanowire. Surface plasmon polaritons, the electromagnetic waves propagating on the interface between metal and dielectrics, have allowed the modal confinement below the diffraction limit. In this paper, we numerically analyze the coupling effect of an APNW which is covered by a dielectric medium using a finite element method. The coupling effect can be modulated by adjusting the Ag nanowire diameter, the covering dielectric medium width and the wavelength of incident light, the propagation length of SP coupling can be maximized. Simulation results reveal that the field confinement can be significantly improved and the majority of the electric field can be carried on the surface of an APNW. The effects of electric field transport along an APNW due to SP coupling which is investigated for different dimensions and lengths. Accordingly, long propagation lengths of about 41500 nm at an incident wavelength of 715 nm and longer propagation length can be achieved if the more sections of APNW are used. Simulation results offer an efficient method for optimizing SP coupling into an APNW and promote the realization of highly integrated plasmonic devices.  Index Terms-plasmonic nanowire waveguide, finite element method, surface plasmon, long propagation lengths

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Section: Design Results and Discussionmentioning

confidence: 99%

Design of an Ag Plasmonic Nanowire Waveguide with Long Propagation Distance

Chau¹

2014

IJSPS

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“…For instance, single fixed and periodic structures have been proposed for MIM filters, such as the tooth-shaped resonator [11,12] and the rectangular resonator [13][14][15][16]. Chau et al have proposed an effective way to modulate the transmission-peak wavelength via changing the parameters of resonator [17,18]. Liu et al have researched a graphene-based Fabry-Perot (F-P) microcavity for plasmon-induced transparency effect working as a band-pass filter [19].…”

Section: Introductionmentioning

confidence: 99%

Plasmonic tunable filter based on trapezoid resonator waveguide

Song

Wang

et al. 2015

Journal of Modern Optics

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2015): Plasmonic tunable filter based on trapezoid resonator waveguide, Journal of Modern Optics,The metal-insulator-metal waveguide structures coupled with a trapezoid cavity are proposed in theory. A variety of transmission features have been found from the simulation results, which is caused by the interference of the plasmonic modes in the trapezoid resonator. The transmission spectra can be effectively modulated by optimizing the geometrical parameters of our configurations such as the height, the upper and bottom edge lengths. Also, the coupling distance possesses great importance on the transmission characteristic. It is found that when the coupling distance is chosen to be around 20 nm, the filter works efficiently. When the trapezoid resonator is attached to the waveguide bus, the bandwidth becomes large. Besides, an effective band-stop filter can be achieved when the bottom edge length is large enough. The finite element method is carried out to verify our designs. We hope our work may open some new avenues for a high-performance plasmonic filter.

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“…This confinement leads to an enhancement of the electromagnetic field at the interface, resulting in an extraordinary sensitivity of SPPs to surface conditions. The sensitivity of peak wavelengths of plasmonic properties between nanometal and dielectric medium has been investigated using the finite-element method [12][13][14].This sensitivity is extensively used for studying adsorbates on a surface, surface roughness, and related phenomena [11,15].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Plasmonic at a Metal/Chiral Sculptured Thin Film Interface

Babaei

Omidi

2013

Plasmonics

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The propagation of surface plasmon polariton at an interface of metallic thin film and chiral sculptured thin film theoretically has been investigated using the transfer matrix method in the Kretschman configuration. The optical absorption of structure as a function of polar incident angle for linear polarization P and S has been calculated at different structural parameters.The results show that exist multiple plasmon peaks for P-polarization, while there are the weak plasmon peaks when incident of light is S-polarized plane wave.

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Long-ranging propagation based on resonant coupling effects using a series connection of ten nanoshells in a plasmon waveguide

Cited by 7 publications

References 16 publications

Design of an Ag Plasmonic Nanowire Waveguide with Long Propagation Distance

Design of an Ag Plasmonic Nanowire Waveguide with Long Propagation Distance

Plasmonic tunable filter based on trapezoid resonator waveguide

Characteristics of Plasmonic at a Metal/Chiral Sculptured Thin Film Interface

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