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Sederberg, Shawn; Zimin, Dmitry; Keiber, Sabine; Siegrist, Florian; Wismer, Michael S.; Yakovlev, Vladislav S.; Floss, Isabella; Lemell, Christoph; Burgdoerfer, Joachim; Schultze, Martin; Krausz, Ferenc ORCID logoORCID: https://orcid.org/0000-0002-6525-9449 and Karpowicz, Nicholas (2020): Attosecond optoelectronic field measurement in solids. In: Nature Communications, Vol. 11, No. 1, 430 [PDF, 1MB]

Abstract

The sub-cycle interaction of light and matter is one of the key frontiers of inquiry made accessible by attosecond science. Here, we show that when light excites a pair of charge carriers inside of a solid, the transition probability is strongly localized to instants slightly after the extrema of the electric field. The extreme temporal localization is utilized in a simple electronic circuit to record the waveforms of infrared to ultraviolet light fields. This form of petahertz-bandwidth field metrology gives access to both the modulated transition probability and its temporal offset from the laser field, providing sub-fs temporal precision in reconstructing the sub-cycle electronic response of a solid state structure. Characterization of light pulses is important in order to understand their interaction with matter. Here the authors demonstrate a nonlinear photoconductive sampling method to measure electric field wave-forms in the infrared, visible and ultraviolet spectral ranges.

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