Line Plot from Scientific Research

Valley-polarized electron population is generated in diamond at room temperature (295 K) using a pump pulse with linear polarization along the [100] direction (insets (i) in a and b ). After 1.4 ps, a second pump pulse with linear polarization along the [010] direction (insets (ii) in a and b ) switches the direction of valley polarization, which manifests itself as a change of sign of the measured alpha of the probe pulse, which is directly proportional to the degree of valley polarization V.

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