@article{article, title = {{Decreasing the emission wavelength of GaAs鈥揂lGaAs quantum cascade lasers by the incorporation of ultrathin InGaAs layers}}, publisher = {{AIP Publishing}}, url = {{}}, year = {{2001}}, month = {{1}}, author = {{Wilson LR and Cockburn JW and Steer MJ and Carder DA and Skolnick MS and Hopkinson M and Hill G}}, doi = {{10.1063/1.1343841}}, volume = {{78}}, journal = {{Applied Physics Letters}}, issue = {{4}}, pages = {{413-415}}, note = {{Accessed on 2025/05/25}}}