Future electronics will be fast. It could be driven at the frequencies of light waves. This implies that the switching speeds would be roughly 100,000 times faster than today. The development of electronics driven by light requires a detailed characterization of the light waves’s electromagnetic fields. Modern so-called field-sampling methods allow for probing the temporal evolution of a light field. While these techniques have been established, a complete and detailed understanding of their underlying mechanism has been lacking. Now, an international team at the Ludwig-Maximilians-Universität München (LMU), under the leadership of Prof. Matthias Kling and Dr. Boris Bergues, has uncovered what exactly happens during the sampling of light fields and how their interaction with matter induces measurable currents in electronic circuits.
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Nature Communications, Volume 13, Article number: 962 (2022)