Optical anisotropy and the direction of polarization of exciton emissions in a semiconductor quantum dot: Effect of heavy- and light-hole mixing
Singh Ranber1, †, Kumar Rajiv2, Singh Vikramjeet3
       

(color online) Two-dimensional polar plots of bright exciton transitions in the growth-plane of a QD. The intensity of the bright exciton states for pure HH states is 3-times larger than that for pure LH states. For pure HH or LH hole states, the exciton states are along and in the growth-plane. However, in the case of the mixed HH-LH hole states the exciton transitions no longer have directions of polarization along and but rather are rotated by some angle with respect to and .