Quantum posts with tailored structural, electronic and optical properties for optoelectronic and quantum electronic device applications

H. J. Krenner and Pierre M. Petroff

Solid State Communications 149, 1386-1394 (2009)

This article reviews the fabrication, structural and optical properties of self-assembled In(Ga)As quantum posts. We introduce the growth mechanism and present the resulting structural properties and electronic structure which provides a direct route to tunable intraband transitions. We show that in the interband spectrum, sharp optical transitions, single photon emission and tailored giant electrostatic dipole moments are observed. We demonstrate that these properties can be used for an exciton memory.