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physics.optics2021
Dips in high-order harmonics spectra from a subcycle-driven two-level system reflected in the negativity structure of the time-frequency Wigner function
Seongjin Ahn, Andrey S. Moskalenko
We investigate high-order harmonics spectra radiated from a two-level model system driven by strong, ultrabroadband half- and single-cycle pulses, which are shorter than the invers…
physics.optics2013
Photovoltaic effect of light carrying orbital angular momentum on a semiconducting stripe
J. Waetzel, A. S. Moskalenko, J. Berakdar
We investigate the influence of a light beam carrying an orbital angular momentum on the current density of an electron wave packet in a semiconductor stripe. It is shown that due…