%0 Journal Article %J Optics Express %D 2013 %T Probing scattering mechanisms with symmetric quantum cascade lasers %A Deutsch, Christoph %A Detz, Hermann %A Zederbauer, Tobias %A Andrews, %A Klang, Pavel %A Kubis, Tillmann C %A Klimeck, Gerhard %A Schuster, Manfred %A Schrenk, Werner %A Strasser, %A Unterrainer, Karl %I Optical Society of America %N 6 %P 7209-7215 %V 21 %Z Accepted February 14, Published: March 14, 2013 in Optics Express, Vol. 21, Issue 6, pp. 7209-7215; doi:10.1364/OE.21.007209 %1 10.1364/OE.21.007209