The electronic structure and the intraband optical properties of self-assembled quantum rods were analysed using a theoretical model based on strain-dependent eight-band k p method. It was found that the intraband optical absorption spectrum for the radiation polarised in the growth direction has one strong peak caused by the transition from the ground state to the state confined in the rod with one node in the growth direction. On the other hand the absorption of in-plane polarised radiation is weaker and is determined by the transitions to mixed quantum well - quantum rod states. The most prominent transitions fall into the technologically relevant terahertz region of the electromagnetic spectrum and can be tailored by engineering the quantum rod height.
|Number of pages||4|
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 4 Aug 2010|
|Event||2nd Workshop on Theory, Modelling and Computational Methods for Semiconductors - St William's College , York, United Kingdom|
Duration: 13 Jan 2010 → 15 Jan 2010
Conference number: 2