Condensed Matter Physics
COUPLED DOUBLE QUANTUM WELLS
Tim Hughes, Dr. Shang-Fen Ren, Dr Guoyi Qin
Department of Physics
Illinois State University
Campus Box 4560
Normal, IL 61761-4560
Email: tshughe@ilstu.edu

Abstract

In virtually all low dimensional semiconductor devices LDDS (low dimensional semiconductor systems) play an important role in both fundamental research and application. We begin to notice this at the level of Molecular Physics. There we frequently encounter motion close to a stable equilibrium configuration. This makes it easier to make predictions about energy and potential. When we look at a molecule composed of a few atoms we can easily simplify the electron potential to one-dimensional coupled quantum wells. We can also use this model to describe the work mechanism of a laser generator. By using an envelope function approximation and a self-developed program we are able to calculate and study the energy levels of coupled double quantum wells.