ABSTRACT
The current state of optical properties of ZnO-based nanostructures is discussed in terms of optical recombination, of bandgap engineering and of nanoheterostructures such as core-shell quantum wells and quantum dots. Whispering gallery and Fabry-Perot modes are reviewed in the section on cavity effects, together with regular and random lasing in ZnO nanostructures. First results on Raman and infrared spectroscopy of nanostructures are listed. Promising optical device applications of ZnO nanowires include electrically pumped lasing arrays, photodetectors, and second harmonic generation.
