202 citations · 1.3k across the 26 of their papers we have counts for
4 papers · 1 filter
Nonreciprocal Polychromatic Radiation from a Space-Time-Modulated Omega-Topology Meta-Transceiver
Sajjad Taravati, Ya-Adama Kabia
Time-modulated metasurfaces offer a magnet-free route to nonreciprocal wave control, but existing realizations modulate only the electric response of the structure, and proposals f…
Temporal Quadrupole Moments: Floquet Higher-Order Topology with Nonreciprocal Frequency-Converting Corner States
Sajjad Taravati, Jingbang Liu
We introduce the temporal quadrupole moment and leverage its nonreciprocal frequency-converting topological corner states to experimentally realize a magnet-free transceiving circu…
The Bragg Frequency Convertor: A Meeting Between Spatial and Temporal Periodicities For Selective Parametric Frequency Translation
Sajjad Taravati
This study introduces the Bragg Frequency Converter, a spatiotemporal-periodic grating concept that extends conventional Bragg gratings into the dynamic domain for pure parametric…
Frequency Conversion Characteristics of Spatiotemporal Josephson Metasurfaces for Quantum Applications
Sajjad Taravati
This presentation explores the various characteristics of a nonreciprocal, frequency-converting Josephson metasurface operating at millikelvin temperatures. Leveraging the unique p…