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The energy band profiles of the C1 and the HH1 at Brillouin zone center for the ground state of (a) conventional rectangular QW and (b) graded QW with and without internal field.
(a) Variation of the momentum-matrix elements for the C1-HH1 transition with wave vector on the x-y plane. (b) Electron and hole wave function envelops at the Brillouin zone center.
TE model C1-HH1 spontaneous emission spectrums of (a) rectangular QW and (b) graded QW under various carrier densities: (1) , (2) , (3) , and (4) .
The variation of spontaneous emission rate of TE model C1-HH1 spontaneous emission spectrums of the rectangular QW and graded QW with the increase of carrier density.
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