Programming scale-free optics in disordered ferroelectrics

TL;DR

This paper demonstrates tunable, scale-free optical propagation in disordered ferroelectric crystals by exploiting the history-dependent properties of a dipolar glass in a lithium-enriched KTN crystal, controlled via temperature and cooling rate.

Contribution

It introduces a novel method to achieve scale-free optics in disordered ferroelectrics using history-dependent phase control.

Findings

Successful demonstration of scale-free optical propagation.

Control of optical properties via temperature and cooling history.

Potential applications in tunable photonic devices.

Abstract

Using the history-dependence of a dipolar glass hosted in a compositionally-disordered lithium-enriched potassium-tantalate-niobate (KTN:Li) crystal, we demonstrate scale-free optical propagation at tunable temperatures. The operating equilibration temperature is determined by previous crystal spiralling in the temperature/cooling-rate phase-space.