Nonlinear optical rectification and optical absorption in GaAs-Ga1-xAlxAs asymmetric double quantum wells: Combined effects of applied electric and magnetic fields and hydrostatic pressure

► Maxima of the NOA correspond to zero in the NOR. ► Electric fields can couple the double quantum wells. ► Hydrostatic pressure can couple the double quantum wells. ► NOA can increase/decrease with hydrostatic pressure. ► Overlap between wave functions depends on the magnetic field.