Category: Publication

In collaboration with several research groups, a team of RTG researchers has successfully pushed the temporal resolution of lightwave-driven scanning tunneling microscopy into the attosecond regime. This allows them to reach the quantum-mechanical space-time limit in ultrafast real-space microscopy, for the first time. Upon excitation with single-cycle near-infrared waveforms, the electrons in the STM tip…

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Using a conventional tabletop mid-infrared laser, we observed optical signals modulated on Ångström length scales. These signatures stem from light emission from tunneling currents flowing between the most frontier atom of a metallic tip and a sample surface and are driven by the oscillating electric field of the laser light.This tunneling-mediated contrast emerges under relatively…

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