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Controlling resonance properties of radially symmetric structures

Published on:

11 August 2023

Primary Category:

Optics

Paper Authors:

James R Capers,

Dean A Patient,

Simon A R Horsley

Bullets

Key Details

Methods derived to control resonance properties by changing permittivity

Eigenvalue problem places resonance at desired frequency

Perturbation theory also allows resonance manipulation

Permits simultaneous control of frequency, linewidth, multipole order

Enables engineering of scattering properties

AI generated summary

Controlling resonance properties of radially symmetric structures

This paper develops methods to precisely control the frequency, linewidth, and multipolar nature of resonances in radially symmetric structures like cylinders and spheres. By formulating an eigenvalue problem or using perturbation theory, the permittivity distribution can be tailored to place resonances at target complex frequencies. This enables the design of structures with engineered scattering properties.

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