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Nonlinear optics

Resolving the attosecond beat

Ultrashort laser pulses strongly drive electrons in glass and manipulate its optical properties on the attosecond timescale. A new spectroscopic study reveals the full interaction dynamics, with promising ramifications for future lightwave-driven petahertz electronics.

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Figure 1: Attosecond polarization spectroscopy.
Figure 2: Reversible and irreversible energy transfer from the light to the medium.

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Correspondence to Michael Krüger or Nirit Dudovich.

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Krüger, M., Dudovich, N. Resolving the attosecond beat. Nature Photon 10, 626–627 (2016). https://doi.org/10.1038/nphoton.2016.189

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