Indjin, D., Tomic, S., Ikonić, Z., Harrison, P., Kelsall, R., Milanović, V., & Kočinac, S. (2002). Gain-maximized GaAs/AlGaAs quantum-cascade laser with digitally graded active region. Applied Physics Letters, 81(12), 2163. https://doi.org/10.1063/1.1508166