In this thought-provoking episode, we are joined by Dr. Alù, a trailblazer in the realm of photonic manipulation, to discuss the fascinating concept of time reflection. Traditionally seen as the uniform inversion of a signal's temporal evolution following an abrupt change in material properties, time reflection has recently become the object of groundbreaking research, propelling us closer to the realization of time metamaterials and Floquet matter.

Dr. Alù guides us through the sophisticated processes underlying time reflection, shedding light on how time can serve as an additional degree of freedom in wave manipulation. We delve into the dynamics of a switched transmission-line metamaterial whose effective capacitance is homogeneously and abruptly changed via a synchronized array of switches, leading to photonic time reflection and associ ...