IPM Calendar  School/Center

Weekly Seminar
Resonant photovoltaic effect of two-dimensional spin-3/2 hole systems
Dr. Mohsen Farokhnezhad

Date : Wednesday , September 7, 2022
           14:00 - 15:00    

The resonant photovoltaic effect (RPE) is a second-order nonlinear optical effect that converts light into electrical current. The non-linear optical transition occurs between heavy-hole (HH) and light-hole (LH) bands with Td-symmetry in a triangular quantum well (QW). The magnitude of RPE peak can be tuned by the momentum relaxation time and electric field. We also derive the Rashba spin-orbit coupling that is generated by electric-dipole coupling for LH and HH states. It is found that GaAs QWs can be employed as the basis for a terahertz photo-detector

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