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arXiv · 1104.4635

Time-reversal in dynamically-tuned zero-gap periodic systems

Yonatan Sivan·John B. Pendry
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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.

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Yonatan Sivan, John B. Pendry. 2011-04-24. Time-reversal in dynamically-tuned zero-gap periodic systems. https://doi.org/10.1103/physrevlett.106.193902

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