We present a broadband and polarization-insensitive unidirectional imager that operates at the visible part of the spectrum, where image formation occurs in one direction, while in the opposite ...

Flat optics have been proposed as an attractive approach for the implementation of new imaging and sensing modalities to replace and augment refractive optics. However, chromatic aberrations impose ...

Based on a suitable band structure, the synergistic effect of oxygen vacancy defects and an electromagnetic field facilitates electron transfer. This process thereby achieves broadband absorption ...