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US 5,844,930 AGranted
Quantum wire lasers
AssigneeLucent Technologies Inc.
InventorsDavid Gershoni, Timothy Dean Harris, Joel Hasen, Loren Neil Pfeiffer, Kenneth William West
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Abstract
Quantum carrier confinement in a wire-like region defined by intersecting layers is significantly enhanced by various structural modifications of a conventional quantum wire device. In that way, operation of the device at room temperature and above is made feasible.
Claims10
A quantum wire device comprising
- means including first and second intersecting layers for defining a quantum wire region at the intersection of said layers,
- means disposed about said layers for index guiding any emitted radiation to confine it to the vicinity of said wire region,
- and means for enhancing electronic carrier confinement in said quantum wire region,
- wherein said means for enhancing electronic carrier confinement comprises means for introducing a strain in at least one of said first and second intersecting layers thereby to sufficiently lower the bandgap of the wire region defined at said intersection relative to the bandgap of said first and second intersecting layers to enable operation of said device at and above room temperature.
1 more element
A quantum wire device comprising
- means including first and second intersecting layers for defining a quantum wire region at the intersection of said layers,
- means disposed about said layers for index guiding any emitted radiation to confine it to the vicinity of said wire region,
- and means for enhancing electronic carrier confinement in said quantum wire region,
- wherein said means for enhancing electronic carrier confinement comprises means for introducing strain in said wire region to sufficiently lower the bandgap in said wire region relative to the bandgap in the layers defining said wire region to enable operation of said device at and above room temperature.
1 more element
Dependencies are inferred from the claim text.