(a) RT CW threshold current of the particular modes determined with the aid of the fully self-consistent approach for two, the lowest-order scalar and vectorial transverse, modes versus the active-region radius . (b) The highest active-region temperature in the threshold of the particular modes determined versus the radius of the active region . (c) Radial profiles of the RT CW threshold carrier concentration determined for VCSELs equipped with active regions of various radii .
