PEREIRA, Mauro and TOMIĆ, Stanko (2011). Intersubband gain without global inversion through dilute nitride band engineering. Applied Physics Letters, 98 (6), 061101.
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4461:4678
Abstract
We investigate the possibility of inter-conduction band without global inversion by engineering the conduction band effective masses so that the upper lasing subband has an effective mass considerably smaller than the lower lasing subband that could not be obtained in conventional
III-V materials. We recover the expected dispersive gain shape for similar masses and contrasting results if the effective masses characterizing the relevant subbands are very different.
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