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Nonlinear subwavelength resonances in three dimensions


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Date

2024-10

Publication Type

Report

ETH Bibliography

yes

Citations

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Abstract

In this paper, we consider the resonance problem for the cubic nonlinear Helmholtz equation in the subwavelength regime. We derive a discrete model for approximating the subwavelength resonances of finite systems of high-contrast resonators with Kerr-type nonlinearities. Our discrete formulation is valid in both weak and strong nonlinear regimes. Compared to the linear formulation, it characterizes the soliton-like extra eigenmodes that have recently been experimentally observed.

Publication status

published

Editor

Book title

Volume

2024-35

Pages / Article No.

Publisher

Seminar for Applied Mathematics, ETH Zurich

Event

Edition / version

Methods

Software

Geographic location

Date collected

Date created

Subject

Nonlinear subwavelength physics; Nonlinear subwavelength resonance; Capacitance matrix formalism; Cubic nonlinear Helmholtz equation; Soliton-like eigenmode

Organisational unit

09504 - Ammari, Habib / Ammari, Habib check_circle

Notes

Funding

200307 - Mathematics of dielectric artificial media (SNF)

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