All-optically transformable broad-band transparency and amplification in negative-index films

TL;DR

This paper demonstrates that negative-index metamaterials can be made optically transparent and amplified across a broad frequency range using a laser-induced process, enabling new control over their optical properties.

Contribution

It introduces a method to achieve broad-band transparency and amplification in negative-index films via laser control, expanding their functional capabilities.

Findings

Transparency achieved above a certain laser intensity threshold.

Broad-band amplification demonstrated in negative-index metamaterials.

Laser control enables dynamic tuning of optical properties.

Abstract

The possibility to produce laser-induced optical transparency of the metamaterial slab through the entire negative-index frequency domain is shown above the certain intensity threshold of the control laser field.