The eigenstates of the coupled-band Luttinger Hamiltonian are used to derive modified optical Bloch equations for strained layer semiconductor heterostructures. An average effective-mass approximation is introduced, and the single-plasmon-pole approximation for the screened Coulomb interaction is extended for the multiplesubband case. Spectra of the optical absorption/gain and of the antiguiding (linewidth enhancement) factor are computed by use of a high-density Padg approximation for the quantum-well susceptibility. We compare results for various strained and unstrained systems.
|Original language||English (US)|
|Number of pages||9|
|Journal||Journal of the Optical Society of America B: Optical Physics|
|State||Published - 1993|
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Atomic and Molecular Physics, and Optics