Steady-state linear optical properties and Kerr nonlinear optical response of a four-level quantum dot with phonon-assisted transition

She Yan-Chao^{1, 2, †,}, Luo Ting-Ting², Zhang Wei-Xi¹, Ran Mao-Wu¹, Wang Deng-Long^{2, ‡,}

Energy-level arrangement of GaAs/AlGaAs QD under study.