The manifestation of ordered generation in a disordered environment of ZnO whiskers

Laser generation in disordered systems based on arrays of ZnO nanocrystals of various morphologies obtained by the original hydrothermal method is studied. It was found that in a visually disordered system of nanocrystallites, a limited number of agglomerates playing the role of optical resonators may exist. Resonators can be considered as a closed structure generating radiation with certain repetitive parameters. The parameters and morphology of such resonators, as well as the nature of the laser radiation generated by them, are discussed.