Abstract: Symmetric quantum dots are embedded in quantum wells. The symmetry is achieved by using slightly off-axis substrates and/or overpressure during the quantum dot growth. The quantum dot structure can be used in a variety of applications, including semiconductor lasers.
Type:
Grant
Filed:
October 21, 2004
Date of Patent:
October 16, 2007
Assignees:
STC. unm, Innolume Acquisition, Inc.
Inventors:
Allen L Gray, Andreas Stintz, Kevin J Malloy, Luke F Lester, Petros M Varangis