Superradiant modes in resonant quasi-periodic double-period quantum wells
Journal
Optics Express
Journal Volume
23
Journal Issue
9
Pages
11946-11951
Date Issued
2015
Author(s)
Abstract
This paper firstly proposes the existence of superradiant modes in resonant quasi-periodic double-period quantum wells (QWs), which has not been observed from analyzing the structure factor by traditional methods. Using the gap map method, the reflection spectra under the relevant conditions show that there are dips in the middle and the linewidth grows linearly, despite the dips, as the number of QWs increases, which is a direct demonstration of superradiance. It is also found that the relevant conditions are divided into three regions, each of which has a different width of bandgaps.
Type
journal article