Deep-subwavelength magnetic-coupling-dominant stereometamaterials

TL;DR

This paper demonstrates that stacked metallic spiral structures can facilitate magnetic coupling-dominant energy transfer at deep-subwavelength scales, confirmed through experimental near-field measurements.

Contribution

It introduces a novel configuration of metallic spiral structures that enables magnetic coupling dominance in energy transport at subwavelength scales.

Findings

Magnetic coupling dominates in the proposed MSS stack configurations.

Successful experimental demonstration of deep-subwavelength energy transport.

Near-field transmission measurements confirm the magnetic coupling mechanism.

Abstract

Here, we experimentally demonstrate that a stack of metallic spiral structures (MSSs) can have dominant magnetic coupling in both of its two configurations. This allows magnetic-coupling-dominant energy transport along a one-dimensional stack of MSSs at a deep-subwavlength scale, as demonstrated with near-field transmission measurement.