Abstract
We discuss a special geometry of impurity superlattices that may produce wavelength and frequency doubling through a second-order nonlinear wave mixing. According to the band theory of impurity superlattices, the corresponding nonlinear susceptibility may become comparable to those found in ordinary crystals.
- Received 28 February 1992
DOI:https://doi.org/10.1103/PhysRevB.46.6882
©1992 American Physical Society