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- W2116734643 abstract "The radiative recombination rate in InAs-based quantum dot lasers has been studied theoretically in the framework of an 8 × 8 k · p model. It is shown that the optical matrix element for transitions between the excited electron-hole states in a quantum dot is usually smaller than that for the ground-state transition. As a consequence, the total radiative recombination rate R in a quantum dot laser depends on the carrier density as R = B(N)N2 with the radiative recombination coefficient B(N) being a strong function of the carrier density N. We find that the recombination coefficient decreases with the carrier density N, and its variation with N depends strongly on the quantum dot shape and size. We conclude that the commonly accepted model that the radiative current density varies quadratically with carrier density N is in general not valid for quantum dot laser structures. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)" @default.
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- W2116734643 date "2005-03-01" @default.
- W2116734643 modified "2023-10-17" @default.
- W2116734643 title "Radiative recombination in InAs-based quantum dot lasers: dependence on carrier density and dot parameters" @default.
- W2116734643 doi "https://doi.org/10.1002/pssc.200460460" @default.
- W2116734643 hasPublicationYear "2005" @default.
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