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Narrow-band optical transmission of metallic nanoslit arrays
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10.1063/1.4764113
/content/aip/journal/apl/101/17/10.1063/1.4764113
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/17/10.1063/1.4764113
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic of the metallic nanoslit array with LID and HID layers on the substrate. (b) Transmission spectra of the structures (p = 400, w = 80 nm, t 0 = t 2 = 200 nm, t 1 = 100 nm) with and without the HID layer. (c) Transmission, reflection, and absorption spectra of the structure in (b) with the HID layer. (d) Spectrum of time-averaged field intensity (〈|Hy |2〉) in the LID/HID region.

Image of FIG. 2.
FIG. 2.

Distributions of the H y field for the structure (p = 400 nm, w = 80 nm, t 0 = t 2 = 200 nm, t 1 = 100 nm) at its transmission peak (λ = 662 nm) and minima (λ = 620, 720 nm). (a)-(c) are snapshots at instants as the resonance field is near maximum. (d)-(f) show, respectively, the field along x = −0.2 μm in (a)-(c). The dashed lines in (a)-(c) define the boundaries of the structure regions, and the slits locate at x = 0.

Image of FIG. 3.
FIG. 3.

(a)-(d) Real and imaginary parts of the normalized propagation constants of the M-LHLD waveguide modes as functions of wavelength for various t 1 and t 2 (units: nm), compared with those of a LHLD waveguide and SPs at a MD interface. (e) and (f) schematically illustrate formation of the hybridized modes in the M-LHLD waveguide.

Image of FIG. 4.
FIG. 4.

(a) and (c) Transmission spectra of the modified metallic nanoslit arrays (p = 400 nm, w = 80 nm, t 0 = 200 nm) for various t 1 and t 2 (units: nm). (b) and (d) Dependences of the position, FWHM width, and maximum transmittance of the narrow-peak on t 1 and t 2 in (a) and (c). (e) and (f) Transmission spectra of the metallic nanoslit arrays with or without the HID layers for various periods.

Image of FIG. 5.
FIG. 5.

Dependences of the positions (a) or derived real effective indices (b) and (c) of the resonance modes at the minima, on long- and short-wavelength sides of the narrow-band peaks, on the period, t 1 and t 2. Comparison is shownfor data obtained from the simulations in Fig. 4 and model-based calculations.

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/content/aip/journal/apl/101/17/10.1063/1.4764113
2012-10-23
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Narrow-band optical transmission of metallic nanoslit arrays
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/17/10.1063/1.4764113
10.1063/1.4764113
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