Abstract
We calculated band structures of (1100)-oriented GaN with various strains. We found that introducing anisotropic strain in the c plane separates heavy hole and light hole bands. We also found that a tensile strain in the (1100) plane makes the light hole band topmost. These two effects result in a reduction in the density of states at the valence band edge. In this way, we can significantly reduce the transparent carrier density to generate gain.
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More From: IEEE Journal of Selected Topics in Quantum Electronics
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