Time-reversal in dynamically-tuned zero-gap periodic systems
Optics
2015-05-28 v1
Abstract
We show that short pulses propagating in zero-gap periodic systems can be reversed with 100% efficiency by using weak non-adiabatic tuning of the wave velocity at time-scales that can be much slower than the period. Unlike previous schemes, we demonstrate reversal of {\em broadband} (few cycle) pulses with simple structures. Our scheme may thus open the way to time-reversal in a variety of systems for which it was not accessible before.
Cite
@article{arxiv.1104.4635,
title = {Time-reversal in dynamically-tuned zero-gap periodic systems},
author = {Yonatan Sivan and John B. Pendry},
journal= {arXiv preprint arXiv:1104.4635},
year = {2015}
}
Comments
Accepted for publication in Phys. Rev. Letters