@article{article, title = {{Decreasing the emission wavelength of GaAs-AlGaAs quantum cascade lasers by the incorporation of ultrathin InGaAs layers}}, 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}}, volume = {{78}}, journal = {{APPL PHYS LETT}}, issue = {{4}}, pages = {{413-415}}, note = {{Accessed on 2025/04/09}}}