In the last few years, the temporal counterpart of spatial interfaces, named temporal interfaces, has been deeply investigated to model, validate, and exploit several novel anomalous wave phenomena in time-domain. Reflection and transmission, accompanied by frequency conversion, always take place at a temporal interface between two different unbounded media, but, recently, temporal interfaces triggered by the effective media parameters experienced by guided waves have been proposed. In this contribution, the recent findings on boundary-induced temporal interfaces are presented, considering two different guiding structures capable to radiate a continuous spatio-temporal spectrum in different directions and a highly confined beam radiated in end-fire direction, respectively.
Ramaccia, D., Stefanini, L., Monti, A., Barbuto, M., Vellucci, S., Longhi, M., et al. (2024). Time-switched metastructures: analysis and design of the anomalous radiative phenomena at time-interfaces. In 2024 18th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2024 (pp.1-3). 345 E 47TH ST, NEW YORK, NY 10017 USA : Institute of Electrical and Electronics Engineers Inc. [10.1109/metamaterials62190.2024.10703232].
Time-switched metastructures: analysis and design of the anomalous radiative phenomena at time-interfaces
Ramaccia, D.;Stefanini, L.;Monti, A.;Barbuto, M.;Vellucci, S.;Longhi, M.;Karamirad, M.;Bilotti, F.
2024-01-01
Abstract
In the last few years, the temporal counterpart of spatial interfaces, named temporal interfaces, has been deeply investigated to model, validate, and exploit several novel anomalous wave phenomena in time-domain. Reflection and transmission, accompanied by frequency conversion, always take place at a temporal interface between two different unbounded media, but, recently, temporal interfaces triggered by the effective media parameters experienced by guided waves have been proposed. In this contribution, the recent findings on boundary-induced temporal interfaces are presented, considering two different guiding structures capable to radiate a continuous spatio-temporal spectrum in different directions and a highly confined beam radiated in end-fire direction, respectively.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
