Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Acousto-Electric"”.
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Acousto-Electric Impedance Of Ferroelectric Phononic Superlattice
The Acousto-Electric Impedance z of a Ferroelectric Phononic Superlattice (fps) is investigated. The analytical derivation of z and its phase reveal that both are functions of physical parameters such as the electromechanical coupling coefficient, the mechanical quality factor, the domain length …
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Hybrid Inverse Problems Arising from Acousto-Electric Coupling
… that aim to overcome the ill-posedness of the Electric Impedance Tomography using the acousto-electric coupling. For the isotropic case, we consider the problem of reconstructing the internal conductivity of an object by making electric measurements on the boundary while perturbing the …
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Surface-acoustic-wave-defined dynamic quantum dots
… acoustic wave (SAW) propagating across a piezoelectric medium creates a travelling electric potential. Gallium Arsenide is such a piezoelectric material, and so SAWs can be used with existing semiconductor technologies for creating complex low-dimensional nanostructures. A SAW travelling along …
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SAW-driven single-photon sources and photon detectors fabricated on an undoped GaAs/AlGaAs quantum well
… and transported by a SAW together with an electric field applied by gates on the surface. The carriers are then collected by ohmic contacts, in order to extract information about the number of photons absorbed. Using the same 15nm GaAs/AlGaAs quantum well as for the single- photon source, …
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Study of Second Generation High Temperature Superconductors: Electromagnetic Characteristics and AC Loss Analysis
… and AC loss analysis. Lorentz Force Electrical Impedance Tomography (LFEIT) is one of the most promising hybrid diagnostic scanners with burgeoning potential for biological imaging, particularly in the detection of cancer and internal haemorrhages. The author tried a novel combination …