Effect of design and stress relaxation on structural, electronic, and luminescence properties of metamorphic InAs(Sb)/In(Ga,Al)As/GaAs mid-IR emitters with a superlattice waveguide

We report on structural and optical studies of metamorphic InAs(Sb)/In(Ga,Al)As quantum well (QW) heterostructures with different designs of the active region, grown by molecular beam epitaxy on Ga...