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Skip to Search Results- 1Agnew, Thomas
- 1Bachman, Jocelyn
- 1Brausen, Henry A
- 1Clark, Thomas J.
- 1Compton, Shawn R
- 1Fraser, Alastair
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Fall 2017
We present a platform for research into nanomaterial-enhanced gas sensing using magnetomotive MEMS resonators. A microfabrication process fl ow is developed and carried out to create metallized silicon MEMS resonators. In tandem, a test system based around a balanced electronic bridge is...
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Fall 2019
This thesis describes the design, fabrication, and characterization of 3D superconducting microwave cavities for two applications. It first describes a cryogenically compatible microwave filter that is able to tune its resonant frequency by an unprecedented 5 GHz via deformation caused by a a...
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Fall 2011
High aspect ratio microelectromechanical structures have been found, in the literature, to collapse due to capillary forces of liquids. In this dissertation, mathematical models are developed to study (i) the collapse of a microstructure represented by a double cantilevered beam (DCB) with a free...
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Fall 2015
Cavity optomechanical devices are interesting systems for probing quantum mechanical behaviour of mesoscopic objects. A basic requirement for these types of experiments is preparation of the mechanical resonator in, or at least very close to, its ground state. Although active laser cooling...
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Spring 2023
When a photon experiences a change in momentum of any form, be it being absorbed or reflected from a surface, the photon will exert a force upon that material. This force is called the radiation pressure force. One way that we can harness this radiation pressure force is to couple optical and...
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Fall 2011
This work investigates the use of nanoimprint lithography for creating nanoscale resonator devices for applications in mass sensing. A bilayer resist consisting of PMMA 495/LOR 3A allowed the ideal imprint yield for resonators with widths ranging from 300 nm down to 120 nm. Resonators with...
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Spring 2010
The procedure for milling micrometre scale cantilevers of lutetium iron garnet using a focused ion beam microscope was developed. The infrastructure to study these cantilevers using rotational hysteresis loops and ferromagnetic resonance experiments was set up. The cantilevers were shown to...
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Spring 2019
Coupling optical cavities to freely moving mechanical devices results in optomechanical systems. Enabled by advancing fabrication techniques, optomechanical systems are now easily fabricated using silicon-on-insulator chips at the micro- and nanoscale. These nano-optomechanical systems (NOMS)...
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In quest of improved nanomechanical sensitivity at larger damping and applications in ambient conditions
DownloadFall 2019
In the current state-of-the-art, a wide variety of devices, from computer clocks to smartphone accelerometers and from pressure gauges to atomic force microscope sensors, rely on mechanical resonators, either in microscale or nanoscale. Nanoscale mechanical resonators have even more potential...