Growth and characterisation of InAs/InGaSb/InAs/AlSbinfrared laser structures

Abstract
The authors have studied the molecular-beam epitaxial growth of type-II heterostructures for mid-wavelength infrared lasers. Based on their photoluminescence spectra and X-ray diffraction patterns, it is found that the quality of these heterostructures is highly sensitive to the growth temperature and the interfacial bond type.