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Fabricating Metamaterials Using the Fiber Drawing Method

Fabricating Metamaterials Using the Fiber Drawing Method

Published on: October 18, 2012

Nonlocal effects in temporal metamaterials.

Carlo Rizza¹, Giuseppe Castaldi², Vincenzo Galdi²

¹Department of Physical and Chemical Sciences, University of L'Aquila, L'Aquila, I-67100, Italy.

Nanophotonics (Berlin, Germany)

|December 5, 2024

Summary

This summary is machine-generated.

Researchers explored nonlocality in temporal metamaterials, revealing unique wave-matter interactions. These findings could lead to novel optical computing devices by manipulating wavepackets.

Keywords:

analog computing effective medium metamaterials nonlocality optical magnetism time-reversal symmetry

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Area of Science:

Photonics and Metamaterials
Wave-Matter Interactions
Nonlocal Phenomena

Background:

Nonlocality is crucial in photonics, enabling effects like giant electromagnetic chirality in spatial metamaterials.
Temporal metamaterials, with time-modulated dielectric permittivity, offer new avenues for exotic phenomena.

Purpose of the Study:

To investigate the effects of nonlocality in temporal metamaterials.
To develop a theoretical framework for nonlocal effective medium theory in time-varying media.

Main Methods:

A rigorous multiscale approach was employed to derive a general formalism.
Two scenarios were studied: periodic temporal modulation and abrupt temporal boundary changes.

Main Results:

Temporal metamaterials exhibit unique nonlocal effects, with similarities and differences to spatial counterparts.
A configuration was identified for temporal metamaterials to perform first-order derivative of wavepackets.
Theoretical predictions were validated by full-wave numerical simulations.

Conclusions:

Nonlocal temporal metamaterials offer significant potential for novel applications.
Exploiting time-reversal symmetry breaking can lead to efficient, tunable optical computing devices.