2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/19170The second part of this thesis is concerned with properties of excitons and modelling of excitonic lasing in quasi-one-dimensional quantum wires. I develop a very general numerical method of calculating the properties of wires with different shapes and materials. Using this method I study the properties of very wide range of T-shaped quantum wires.PhD thesis (Part 2), Cambridge University, October 2001Condensed Mattertext