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arXiv · 1612.08433

Ultrafast optical Faraday effect in transparent solids

Michael S. Wismer·Mark I. Stockman·Vladislav S. Yakovlev
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Abstract

We predict a strong-field ultrafast optical Faraday effect, where a circularly polarized ultrashort optical pulse induces transient chirality in an achiral transparent dielectric. This effect is attractive for time-resolved measurements because it gives access to the non-instantaneity of the nonlinear medium response, and also because it represents relaxation of time-reversal symmetry by all-optical means. We propose probing the induced transient chirality with a weak linearly polarized ultraviolet pulse that is shorter than the near-infrared pump pulse. The predicted effects are ultrafast: the induced chirality vanishes for probe delays exceeding the duration of the near-infrared pulse. This opens up possibilities for applications in ultrafast circular-polarization modulators and analyzers.

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Michael S. Wismer, Mark I. Stockman, Vladislav S. Yakovlev. 2017-05-19. Ultrafast optical Faraday effect in transparent solids. https://doi.org/10.1103/physrevb.96.224301

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