| 摘要 |
A quantum well structure having a host optical phonon confinement well (11) having a characteristic phonon distribution (16), and at least one charge carrier confinement well (17) located near a minima of the phonon distribution (16). In one embodiment, a wide bandgap layer (13) is formed in a central portion of the host optical phonon confinement well (11), wherein the wide bandgap layer (13) has phonon properties closely matching that of the host phonon confinement well (11).
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