Tunneling-induced highly efficient four-wave mixing in asymmetric double quantum wells

Abstract

The time-dependent analysis of four-wave mixing based on resonant tunneling is investigated in an asymmetric semiconductor double quantum well structure. We analytically demonstrate that a highly efficient mixing wave is found to be induced by resonant tunneling in such a quantum well scheme with low-light pump wave intensities. Especially for small propagation distances, a significant enhancement of four-wave mixing conversion efficiency can be achieved. Such an interesting scheme could be used to generate coherent short-wavelength radiation in solid-state materials.