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Electromagnetic properties of resonant magnetoplasmonic core-shell nanostructures
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10.1063/1.3527007
/content/aip/journal/jap/109/1/10.1063/1.3527007
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/1/10.1063/1.3527007

Figures

Image of FIG. 1.
FIG. 1.

Illustrative examples of CS nanostructures considered: (a) isotropic case; (b), (c), and (d) refer to representative anisotropic CS nanostructures situations where the shell of the CS nanostructures involves sharp edges and tips.

Image of FIG. 2.
FIG. 2.

Cross-sectional view for the infinite CS nanostructure (i.e., for type a) investigated. The square cell has size in the direction and is infinitely extended in the direction. We assume that the cylinders are centered about the origin of the coordinates. Since typical values of the radius and shell thickness are and , respectively, the shell thickness is greatly exaggerated in this figure.

Image of FIG. 3.
FIG. 3.

(a) Calculated values of the region of the complex plane inside which the allowed values of the effective complex permittivity of the CS structure a of Fig. 1 exist from the Wiener (black solid and dashed lines) and HS (gray solid and dashed lines) bounds. . The FE calculated value of the effective magnetic permeability gives . (b) The real, , and imaginary, , parts of the effective complex permittivity plotted as a function of near the resonance of the CS structure a of Fig. 1. The solid line represents the values of deduced from using the KK relationship.

Image of FIG. 4.
FIG. 4.

(a) The real part of the complex effective magnetic permeability is plotted versus frequency of the magnetic field, for the CS structures considered in Fig. 1 and . The letters and corresponding lines (solid: a, dashed: b, dotted: c, and dash-dotted: d) refer to the structures displayed in Fig. 1. The magnetic field is defined to be along the -axis. (b) Same as in (a) for the imaginary part of the complex effective magnetic permeability. (c) Same as in (a) for the modulus of the impedance. (d) Same as in (c) for the phase of the impedance.

Image of FIG. 5.
FIG. 5.

Same as in Fig. 3 for .

Image of FIG. 6.
FIG. 6.

Spatial distribution of the MFE for the gyresonance mode (4.53 GHz) for the 2D CS structure considered in the inset of Fig. 1. , , and . The arrows indicate the orientation of the magnetic field.

Image of FIG. 7.
FIG. 7.

(a) Evolution of the spectral behavior of the real part of the effective permittivity for the CS structures considered in Fig. 1 and . The letters and corresponding lines refer to the structures displayed in Fig. 1 and polarization of the electric field. The electric field is defined to be either along the -axis or the -axis . (b) Same as in (a) for the imaginary part of the effective permittivity of the complex effective permittivity. (c) Same as in (a) for the modulus of the impedance. (d) Same as in (c) for the phase of the impedance.

Image of FIG. 8.
FIG. 8.

Same as in Fig. 6 for .

Image of FIG. 9.
FIG. 9.

Top: visualization of the EFE for CS structure a and corresponding to . The electric field is oriented along the -axis. Middle: same as in top for CS structure d and . The electric field is oriented along the -axis. Bottom: same as in middle for . The electric field is oriented along the -axis.

Image of FIG. 10.
FIG. 10.

Evolution of the spectral behavior of the modulus of the impedance for several variants of the d CS structure displayed in Fig. 1 and . The letters and corresponding lines, refer to the d structure with values of and listed in Table I. The electric field is defined to be either along the -axis or the -axis . (b) Same as in (a) for the phase of the impedance.

Image of FIG. 11.
FIG. 11.

(a) Evolution of the spectral behavior of the real part of the effective permittivity for several variants of the d CS structure displayed in Fig. 1 and . The letters and corresponding lines refer to the d structure with values of and listed in Table I. The electric field is directed along the -axis . (b) Same as in (a) for the imaginary part of the effective permittivity of the complex effective permittivity. (c) Same as in (a) for the modulus of the impedance. (d) Same as in (c) for the phase of the impedance.

Image of FIG. 12.
FIG. 12.

Same as in Fig. 10 when the electric field is oriented along the -axis .

Image of FIG. 13.
FIG. 13.

Top: visualization of the EFE for CS structure and corresponding to . Same as in top for CS structure and . Same as in top for structure and . Same as in top for structure and 275.2 THz. The electric field is oriented along the -axis.

Image of FIG. 14.
FIG. 14.

Same as in Fig. 12 when the electric field is oriented along the -axis. From top to bottom, the frequencies are for : 279.1 THz, : 232 THz, : 207.4 THz, and : 252.1 THz, respectively.

Tables

Generic image for table
Table I.

Values of and considered for the calculations leading to Figs. 10–14 (see Fig. 1 for their respective definition).

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/content/aip/journal/jap/109/1/10.1063/1.3527007
2011-01-04
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electromagnetic properties of resonant magnetoplasmonic core-shell nanostructures
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/1/10.1063/1.3527007
10.1063/1.3527007
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