Time Modulated Metamaterials

Time switched and time-varying metamaterials whose properties are modulated in time, have recently emerged as a new paradigm for wave manipulation and information processing, beyond the limits set by energy conservation and time-reversal symmetry. These metamaterials enable the control of wave momentum, frequency, and digital information, and offer unique applications such as nonreciprocity, smart reconfigurable response, wave synthesis, and next-generation wireless communications, across electromagnetism, acoustics and mechanics. They are also a testbed for topological and non-Hermitian physics, or can be exploited to simulate more complex wave phenomena and information technologies, including also serving as analogues for e.g. fundamental phenomena in curved spacetimes. Time-modulated metamaterials haveare also started to emerge in the context of quantum waves. This Special Topic Collections addresses the recent theoretical concepts, metamaterials architectures, experimental observations, device fabrication, and system application that are advancing our understanding of wave interaction with time switched metamaterials.

Guest Editors: Anthony Grbic, Daniele Faccio, Humeyra Caglayan, Maxim Shcherbakov, Tie Jun Cui, and Riccardo Sapienza