Antireflection Spatiotemporal Metamaterials (Laser Photonics Rev. 17(9)/2023)

Antireflection Spatiotemporal Metamaterials In article number 2300130, Hao Hu, Lei Gao, Dongliang Gao, and colleagues propose a spatiotemporal metamaterial to fully suppress the reflection and realize frequency conversions. The spatiotemporal metamaterials with two dynamic interfaces are engineered simultaneously in space and time by the pump beams, which are obliquely incident onto the metamaterials.