Optical multilayer structures for harmonic laser emission are disclosed. The multilayer structures are made of plurality of layers of different optically nonlinear semiconductor materials. The thicknesses, locations and refractive indices of the layers are designed, according to a modified Fourier transform,...http://www.google.de/patents/US5111466?utm_source=gb-gplus-sharePatent US5111466 - Optical multilayer structures for harmonic laser emission
