Search for dissertations about: "QUANTUM WELLS"
Showing result 6 - 10 of 79 swedish dissertations containing the words QUANTUM WELLS.
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6. Theory of electronic structure and transport in heterostructure nanowires
Abstract : Today, semi-conductor nanowires can be grown with very high precision, using epitaxy. This allows for studies of new nanowire-based quantum devices, likely to be part of novel quantum technologies in the future. This thesis concerns nanostructures based on InAs nanowires. READ MORE
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7. Zeeman Interaction in Low-Dimensional III-V Semiconductor Structures
Abstract : The Zeeman interaction in low-dimensional III-V semiconductor nanostructures is studied. The effective g-value of bulk InGaAs is measured by two different spin resonance techniques. Experimental conditions were found to control the Overhauser effect, thus enabling a highly accurate determination of the g-value, g* = -4.070 ± 0. READ MORE
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8. Surface-normal multiple quantum well electroabsorption modulators based on GaAs-related materials
Abstract : .... READ MORE
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9. Electron Transport in Low Dimensional Systems
Abstract : This thesis consists of experimental studies of transport properties in high mobility two dimensional electron gases (2DEGs). Two material systems are used, an AlGaAs/GaAs heterojunction and a GaInAs/InP quantum well. READ MORE
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10. Type-II interband quantum dot photodetectors
Abstract : Photon detectors based on single-crystalline materials are of great interest for high performance imaging applications due to their low noise and fast response. The major detector materials for sensing in the long-wavelength infrared (LWIR) band (8-14 µm) are currently HgCdTe (MCT) and AlGaAs/GaAs quantum wells (QW) used in intraband-based quantum-well infrared photodetectors (QWIPs). READ MORE