Imaging the electron motion dynamics in graphene

In this work, we utilized the recently demonstrated attosecond electron microscope "Attomicroscopy" to image the electron motion dynamics in graphene. In a strong field, the electron is moving in the reciprocal space around the Dirac point following the waveform of the driver field. The attosecond electron diffraction experiment allowed us to extract the electron density distribution in the reciprocal space at different time instants and connect it with the electron motion in real space. This work allows us to see and control the light field-induced electron motion in graphene and opens the door to developing ultrafast lightwave graphene-based electronics.