Back and Through the Looking Glass - Space-time scattering of elastic waves
Back and Through the Looking Glass - Space-time scattering of elastic waves
Due to causality wave scattering in time is simpler than scattering in space: Incontrast to multiple spatial boundaries, there are no infinite reflections betweentemporal boundaries. Salem and Caloz, 2015 [1] showed that wave scatter-ing can be simplified by constructing a time-space cross-mapping. We identifythe cross-mapped wavefields as the Focusing functions …