19 Magnetoelectric Near Fields
539
Fig. 19.2 Field confinement originating from the MDM vortices in a ferrite disk. a The Poynting
vector distributions for the field on plane A at the frequency (f = 8.5225 GHz) of the first resonance.
b The same at the frequency (f = 8.5871 GHz) between the resonances. c The same at the frequency
(f = 8.6511 GHz) of the second resonance. d The Poynting vector distributions inside a ferrite disk
at the frequency of the first resonance. e The same at the frequency between resonances. f The same
at the frequency of the second resonance. g The plane A is a vacuum plane inside a waveguide
situated above an upper plane of a MDM ferrite disk [67]
E ·
H together with a cross product
E ×
H in the near-field region of a subwavelength sample. This question concerned the samples with ME properties. When, for
MDM oscillations in a subwavelength ferrite disk, we observe the cross-product of
the fields, can we classify this field structure as the ME fields, which are also characterized by the properties of PT -symmetry and dot-product
E ·
H of the fields? In
[56] it was shown that in the near-field region adjacent to the MDM ferrite disk, there
exists also another quadratic parameter determined by the scalar product between
the electric and magnetic field components:
F =
ε 0
4
Im
E ·
∇ ×
E
∗
=
ωε 0 μ 0
4
Re
E ·
H
∗
= 0.
(19.34)
539
Fig. 19.2 Field confinement originating from the MDM vortices in a ferrite disk. a The Poynting
vector distributions for the field on plane A at the frequency (f = 8.5225 GHz) of the first resonance.
b The same at the frequency (f = 8.5871 GHz) between the resonances. c The same at the frequency
(f = 8.6511 GHz) of the second resonance. d The Poynting vector distributions inside a ferrite disk
at the frequency of the first resonance. e The same at the frequency between resonances. f The same
at the frequency of the second resonance. g The plane A is a vacuum plane inside a waveguide
situated above an upper plane of a MDM ferrite disk [67]
E ·
H together with a cross product
E ×
H in the near-field region of a subwavelength sample. This question concerned the samples with ME properties. When, for
MDM oscillations in a subwavelength ferrite disk, we observe the cross-product of
the fields, can we classify this field structure as the ME fields, which are also characterized by the properties of PT -symmetry and dot-product
E ·
H of the fields? In
[56] it was shown that in the near-field region adjacent to the MDM ferrite disk, there
exists also another quadratic parameter determined by the scalar product between
the electric and magnetic field components:
F =
ε 0
4
Im
E ·
∇ ×
E
∗
=
ωε 0 μ 0
4
Re
E ·
H
∗
= 0.
(19.34)