# Evolution of dispersion-engineered metasurfaces: Debye relaxation and folded path concept

**Authors:** Hammad Ahmed, Buxiong Qi, Xianzhong Chen

PMC · DOI: 10.1038/s41377-025-01890-2 · Light, Science & Applications · 2025-06-24

## TL;DR

This paper explores new methods in metasurface design using Debye relaxation and folded paths to enhance applications like imaging and cloaking.

## Contribution

The paper introduces the use of 2nd-order Debye relaxation and the folded-path concept in dispersion-engineered metasurfaces.

## Key findings

- The 2nd-order Debye relaxation improves metasurface performance.
- The folded-path concept enhances applications such as beam shaping and cloaking.

## Abstract

Dispersion engineering is advancing with recent breakthroughs in metasurfaces using the 2nd-order Debye relaxation and the folded-path concept, greatly improving relevant applications such as imaging, beam shaping, and cloaking.

Dispersion engineering is advancing with recent breakthroughs in metasurfaces using the 2nd-order Debye relaxation and the folded-path concept, greatly improving relevant applications such as imaging, beam shaping, and cloaking.

## Full-text entities

- **Chemicals:** PSHE (-)

## Full text

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## Figures

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## References

2 references — full list in the complete paper: https://tomesphere.com/paper/PMC12187911/full.md

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Source: https://tomesphere.com/paper/PMC12187911