Figure 3: Determination of Voigt-geometry p-shell hole g-factor.

(a) The allowed transitions for recombination of an s-shell electron-hole pair of the positively charge biexciton, XX⁺, is showed. Red and blue arrows indicate photon emission with opposite linear polarization. (b) The energies of the quadruplet with S=5/2 final state, offset by their mean at 4T, and (c) the energies of the quadruplet with S=1/2 final state, offset by their mean at 4T, as a function of electric field. (d) The absolute energy of the transitions shown in a versus electric field, at 4T. From b,c, we independently extract the magnitude of the p-shell hole g-factor (e) for the S=1/2 (red) and S=5/2 (blue) transitions.