Pulsed Four-Wave Mixing in Intersubband Transitions of a Semiconductor Quantum Well: Effects of Pulse Shape
Sofia Evangelou, Emmanuel Paspalakis, Nikolaos A. Vainos +4 more
We study theoretically the phenomenon of pulsed four‐wave mixing in intersubband transitions of a symmetric semiconductor quantum well structure. In the theoretical model we consider two quantum well subbands that are coupled by a strong pulsed pump electromagnetic field and a weak pulsed probe electromagnetic field. For the description of the system dynamics we use the density matrix equations obtained from the effective nonlinear Bloch equations. We calculate the time‐integrated four‐wave mixing spectrum for various pulse shapes and electron sheet densities and study the effects of pulse shape on four‐wave mixing.
AIP conference proceedings•Jan 1, 2010•0 citations