Quantitative determination of the doping level distribution in n-type GaAs using absorption mappingP. J. Wellmann, A. Albrecht, U. Künecke, B. Birkmann, G. Mueller and M. JurischEur. Phys. J. Appl. Phys., 27 1-3 (2004) 357-361DOI: https://doi.org/10.1051/epjap:2004041