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 11 of 11 for “"mechanical resonator"”.
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QUBIT COUPLED MECHANICAL RESONATOR IN AN ELECTROMECHANICAL SYSTEM
… the development of a hybrid quantum electromechanical system. In this system the mechanical resonator is capacitively coupled to a superconducting transmon which is embedded in a superconducting coplanar waveguide (CPW) cavity. The difficulty of achieving high quality of superconducting …
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Quantum acoustics with a released thickness-mode mechanical resonator
… Josephson elements with high-quality mechanical resonators, enabling potential applications in quantum memories, transducers, and sensors. A central challenge in this field is achieving strong electromechanical coupling between the mechanical resonator and the superconducting qubit, …
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Modeling the Motion of Solid Objects Immersed in Viscoelastic Fluids
… on the modeling and analysis of a long, slender mechanical resonator in both Newtonian and weakly viscoelastic fluids for use as a continuously deployed rheometer in industrial settings. Much like the motions of spherical particles discussed in the first parts of this thesis, the vibration of an …
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The Stochastic Dynamics of Optomechanical Sensors for Atomic Force Microscopy
… dynamics and important diagnostics of a mechanical resonator (nanobeam) used in cavity optomechanical sensors for atomic force microscopy. Atomic force microscopy (AFM) is a tool to image surface topology down to the level of individual atoms. Conventional AFM has been an essential tool …
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A micromachined magnetic field sensor for low power electronic compass applications
… system is composed of a micromachined silicon resonator combined with a permanent magnet, excitation and sensing coils, and a magnetic feedback loop. Electromagnetic excitation of the mechanical resonator enables it to operate with very low power consumption and low excitation voltage. The …
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Optomechanical Spin-Photon Interface in Wide-Bandgap Materials
… qubits at telecommunication wavelengths. Hybrid mechanical systems aim to overcome this challenge by harnessing the ability of mechanical motion to control and couple disparate quantum systems. In recent years, experiments have demonstrated mechanical control of quantum systems suitable for …
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The Development of a Fluid Consistency Transducer
… uses the effects of fluid loading on a mechanical resonator. This is in the form of a disk (sensor) mounted at the end of a rod about 2.5 m long. The disk is driven by longitudinal waves in the rod generated by making a section of it of magnetostrictive material. Three classifications …
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An Exploration of Nonlinear Locally Resonant Metamaterials with Electromechanical and Topological elements
… elements in their design. The addition of local resonators provides greater versatility in controlling vibrations. Nonlinear elements introduce features such as discrete breathers and frequency shift. Electromechanical metamaterials have been established to have great potential for use in …
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Ultra-low frequency wireless transmitter design using resonant oscillating permanent magnets
… low-power ULF transmitters using the periodic mechanical motion of permanent magnets. First, I analytically show that the physical oscillation of a permanent magnet creates a time-varying magnetic field that can be used for communication. Using this principle, I present a ULF magneto-mechanical …
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FUNDAMENTAL TECHNOLOGIES FOR THE OPTO MECHANICAL GYROSCOPE
… waves in a LIGO to the study of the quantum mechanical ground state of a simple harmonic oscillator, opto-mechanics spans a very wide range of the physical world. Optical systems with their capability of high sensitivity have been evaluated for applications as sensors like heart rate …
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High Yield Fabrication of Monolayer WSe₂ Mechanical Resonators and a Study of Their Loss Mechanisms
… Monolayer tungsten diselenide (WSe<sub>2</sub>) mechanical resonators have great potential as an answer to this demand: possessing large zero-point motion, being optically active due to its direct bandgap, and its ability to host quantum emitters. In order for monolayer WSe<sub>2</sub> resonators …