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.
@article{arxiv.1207.0683,
title = {Programming scale-free optics in disordered ferroelectrics},
author = {Jacopo Parravicini and Claudio Conti and Aharon J. Agranat and Eugenio DelRe},
journal= {arXiv preprint arXiv:1207.0683},
year = {2016}
}