We present a novel approach to flattening the in-chip thermal profile that develops within multiple-emitter, 1-cm-wide bars by optimally manipulating heating at the edge-emitters. The best-designed ...

In this paper, we have calculated performance of the novel four-level THz-QCLs with the non-equilibrium Green's function (NEGF) method. The calculation result for 40 K showed that the indirect-pump ...