Dielectric superlattice and its potential applications in display technology

Dielectric superlattice has artificial microstructures in micrometer span. Cascade quasi-phase-matched frequency conversion could be realized in certain specially-designed superlattices. Efficient red-green-blue lights thus were obtained simultaneously, which may be used in laser display. On the other hand, light filtering and modulation also could be achieved though acousto-optic effect by using a dielectric superlattice.