Disentangling Time in a Near-Field Approach to the Scanning Probe Microscopy

Microwave Microscopy attracted the more recent and intensive efforts, owing to its capability to provide quantitative information about the local composition and the electromagnetic response of a sample. Nonetheless, the interpretation of microwave images remains a challenge as the electromagnetic waves interact with the sample and the surrounding in a multitude of ways and following different paths: microwave images are a convolution of all contributions. In this work we show that examining the time evolution of the electromagnetic waves allows to disentangle each contributions, providing images with striking quality and unexplored directions for the near-field microscopy.