Z. Ikonic et al., INTERSUBBAND OPTICAL-TRANSITION MATRIX-ELEMENTS FOR HOLE STATES IN SEMICONDUCTOR QUANTUM-WELLS, Journal of physics. Condensed matter, 7(35), 1995, pp. 7045-7052
Intersubband optical transition matrix elements between quantized hole
states in semiconductor quantum wells, calculated from the 4 x 4 Hami
ltonian, are derived, taking into account the position dependence of L
uttinger gamma parameters. Furthermore, the transition matrix elements
between states obtained within the axial approximation, from the 2 x
2 Hamiltonian, are also derived. Numerical calculations indicate the i
mportance of taking the position dependence of Luttinger parameters in
to account for bound-free transitions.