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Andrea Alu1 Sander Mann1 Mykhailo Tymchenko1 Dimitrios Sounas1

1, The University of Texas-Austin, Austin, Texas, United States

The delay-bandwidth limit refers to the trade-off between the time delay that can be applied to a signal traveling through a device and its bandwidth. Recently, there have been several studies showing that this bound can be broken in nanophotnics, including time-modulated photonic crystals, nonreciprocal cavities and terminated unidirectional waveguides. In our talk, we will discuss various approaches to overcoming the delay-bandwidth limit, their relation to Lorentz reciprocity, and a novel approach to slow down waves using temporally modulated network, which enables a quasi-electrostatic signal transport with large group velocities over broad bandwidths of operation.

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