Green’s functions theory for semiconductor-quantum-well laser spectra

PEREIRA, Mauro and HENNEBERGER, K. (1996). Green’s functions theory for semiconductor-quantum-well laser spectra. Physical Review B, 53 (24), 16485-16496.

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Link to published version:: 10.1103/PhysRevB.53.16485


A microscopic approach for the computation of semiconductor quantum well laser power spectra is presented. The theory is based on nonequilibrium Green’s function techniques that allow for a consistent description of the coupled photon and carrier system fully quantum mechanically. Many-body effects are included through vertex corrections beyond the random-phase approximation. Band structure engineering is incorporated in the theory as dictated by the coupled band solutions of the Luttinger Hamiltonian. The influence of the detailed cavity-mode structure is accounted for by the photon Green’s function. The theory describes the interplay among the various many-body, quantum-confinement, and band structure effects in the gain medium and its action as a laser cavity. Numerical results for the recombination rates, optical response, and laser output power spectra are presented for strained-layer and lattice-matched III-V systems at quasiequilibrium with variable design and material parameters and under different excitation conditions. Active optical switching is demonstrated in specially designed structures.

Item Type: Article
Research Institute, Centre or Group: Materials and Engineering Research Institute > Thin Films Research Centre > Electronic Materials and Sensors Research Group
Identification Number: 10.1103/PhysRevB.53.16485
Depositing User: Helen Garner
Date Deposited: 18 Nov 2014 16:31
Last Modified: 18 Nov 2014 16:31

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