Strong near-field couplings of anapole modes and the formation of higher-order electromagnetic modes in stacked all-dielectric nanodisks

Abstract We theoretically study the near-field couplings of two stacked all-dielectric nanodisks, where each disk has an electric anapole mode consisting of an electric dipole mode and an electric toroidal dipole (ETD) mode. Strong bonding and anti-bonding hybridizations of the ETD modes of the two disks can occur. The bonding-hybridized ETD can interfere with the dimer's electric dipole mode and induce a new electric anapole mode. The anti-bonding hybridization of the ETD modes can induce a magnetic toroidal dipole (MTD) response in the disk dimer. The MTD and magnetic dipole resonances of the dimer form a magnetic anapole mode. Thus, two dips associated with the hybridized modes appear on the scattering spectrum of the dimer. Furthermore, the MTD mode is also accompanied by an electric toroidal quadrupole mode. The hybridizations of the ETD and the induced higher-order modes can be adjusted by varying the geometries of the disks. The strong anapole mode couplings and the corresponding rich higher-order mode responses in simple all-dielectric nanostructures can provide new opportunities for nanoscale optical manipulations.

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Near-Field Credit Card-Sized Chipless RFID Tags Using Higher-Order Mode Resonance Frequencies of Transmission Line Resonators

IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences ◽

10.1587/transfun.2019kep0001 ◽

2020 ◽

Vol E103.A (9) ◽

pp. 1001-1010

Author(s):

Fuminori SAKAI ◽

Mitsuo MAKIMOTO ◽

Koji WADA

Keyword(s):

Transmission Line ◽

Credit Card ◽

Near Field ◽

Higher Order ◽

Rfid Tags ◽

Order Mode ◽

Chipless Rfid ◽

Resonance Frequencies ◽

Higher Order Mode

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Higher order mode excitation in eccentric active nano-particles for tailoring of the near-field radiation

2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS) ◽

10.1109/metamaterials.2015.7342431 ◽

2015 ◽

Author(s):

R. O. Thorsen ◽

S. Arslanagica

Keyword(s):

Near Field ◽

Higher Order ◽

Nano Particles ◽

Order Mode ◽

Mode Excitation ◽

Field Radiation ◽

Higher Order Mode

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Near-Field Pattern of Large Aperture Higher Order Mode Generator Using Backpropagated Fields in Free Space

IEEE Transactions on Plasma Science ◽

10.1109/tps.2014.2307578 ◽

2014 ◽

Vol 42 (4) ◽

pp. 937-943 ◽

Cited By ~ 3

Author(s):

Kwanghoon Kim ◽

Mun Seok Choe ◽

Woosang Lee ◽

Joonho So ◽

Eunmi Choi

Keyword(s):

Free Space ◽

Near Field ◽

Higher Order ◽

Field Pattern ◽

Order Mode ◽

Large Aperture ◽

Higher Order Mode

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The Mixed Method Analysis of Higher Order Mode in Waveguide of Piecewise Homogeneous Dielectric

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.130-134.3334 ◽

2011 ◽

Vol 130-134 ◽

pp. 3334-3337

Author(s):

Chun Jiang Shuai

Keyword(s):

Mixed Method ◽

Higher Order ◽

Order Mode ◽

Tem Cell ◽

Higher Order Modes ◽

Calculation Results ◽

Elementary Principle ◽

Method Analysis ◽

General Computer Program ◽

Higher Order Mode

This paper presented the elementary principle and the computation for waveguide eigenvalues by using mixed method (Quadric-FE-BEM). A general computer program based on the mixed method is programed, as an application, the cut–off wavelength of higher order modes in the rectangular waveguide are computed and the calculation results are well in agreement with the theoretical value. It has been shown that the mixed method is an effective method to analyze waveguide eigenvalues in engineering. At last, the cut-off wavelength of higher order modes in TEM Cell of homogeneous dielectric is also analyzed.

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Higher Order Modes as Accuracy Limiting Factor in Permittivity Measurements of High Lossy Fluids Using Transmission Techniques in the GHz Range

Zeitschrift für Naturforschung A ◽

10.1515/zna-1989-0114 ◽

1989 ◽

Vol 44 (1) ◽

pp. 75-80 ◽

Cited By ~ 1

Author(s):

A. Redhardt ◽

H.-J. Steinhoff ◽

J. Schütter ◽

H.-J. Neumann ◽

G. Hess

Keyword(s):

Higher Order ◽

Dielectric Constants ◽

Limiting Factor ◽

Order Mode ◽

High Permittivity ◽

Simulation Procedure ◽

Higher Order Modes ◽

Permittivity Measurements ◽

Higher Order Mode

Abstract The higher order mode distortion in measuring dielectric constants on high lossy, high permittivity liquids in the GHz range is investigated by a simulation procedure as well as by experiment. For this, a homodyne method for measuring ε* is introduced in analogy to precision EPR-work.

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Enhanced Gain Microstrip Patches Operating on Higher Order Modes

International Journal of Microwave Science and Technology ◽

10.1155/2007/46350 ◽

2007 ◽

Vol 2007 ◽

pp. 1-5

Author(s):

Milan Polivka ◽

Alois Holub

Keyword(s):

Current Distribution ◽

Source Area ◽

Higher Order ◽

Order Mode ◽

Phase Current ◽

Gain Enhancement ◽

Higher Order Modes ◽

Patch Topology ◽

Higher Order Mode

Novel topologies of rectangular microstrip patches providing broadside radiated one point fed radiators with enhanced gain are compared. The principle of the gain enhancement is based on an extension of a source area. Dominant in-phase current distribution on the patch is maintained by using higher order mode and geometrical modification of the patch topology. That is achieved by introducing suitable perturbation elements in the shape of slots and notches. Two principal patch topologies operating on TM21 and TM03 modes are described. A comparison of simulated and measured properties of realized prototypes at 10 GHz band are presented. The results show that gain 12.3 dBi of single patch can be reached.

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