ZnO nanostructures: Optical resonators and lasing

Abstract

We review briefly reports on lasing in different kinds of ZnO nanostructures ranging from clusters to pillars, tetrapods, and belts. Then detailed studies on individually in-situ accessible, well-faceted upright pillars grown on a metal interlayer on silicon substrate are presented. We observe in cathodoluminescence directly ultraviolet light standing wave resonator modes, and under pulsed excitation lasing activity based on (e,h) plasma recombination. © 2009 Springer-Verlag Berlin Heidelberg.