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 20 of 462 for “"Resonators"”.
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Holographic laser resonators
The work presented within this thesis details the development and characterisation of a CW solid-state adaptive resonator that uses phase-conjugation to actively correct for phase distortions present within the resonator loop. It is shown that the phase-conjugate of a given beam can be produced by …
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Development of optomechanofluidic resonators
Optomechanofluidic resonators (OMFRs) supporting both high-optical Q factor whispering-gallery modes and high-mechanical Q factor optomechanical modes have recently emerged as a novel sensor configuration able to respond to mass density, mechanical compressibility, and viscoelasticity of label-free …
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Gallium nitride MEMS resonators
… these qualities make GaN ideal for RF MEMS resonators. Hence, GaN technology offers a platform for the seamless integration of low-loss, piezoelectric RF MEMS resonators with high power, high frequency electronics. Monolithic integration of MEMS resonators with ICs would lead to reduced …
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Microwave Properties of Helical Resonators
… near-zero coupling between closely spaced resonators can be achieved. This is experimentally validated using an innovative liquid metal 3D-printing technique for mould fabrication, demonstrating controlled coupling behaviour and the potential for achieving superdirectivity in coupled …
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Graphene NanoElectroMechanical Resonators and Oscillators
… and measurements of typical graphene NEMS resonators, including doubly clamped and fully clamped graphene mechanical resonators. I have developed a electrical readout technique by using graphene as frequency mixer, demonstrated resonant frequencies in range from 30 to 200 MHz. Furthermore, …
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Electromechanical resonators as measuring transducers
… Because of their high quality factor, mechanical resonators give very good frequency stability and are widely used as sensors. For this work symmetrical mechanical resonators such as the tuning fork were considered, to be the most promising. These are dynamically clamped and can be designed to …
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Nonreciprocal coupling to microstrip resonators
… such as coherent spatiotemporal modulation of resonators and waveguides. One such technique, indirect interband scattering, uses a traveling wave bias to scatter light between two modes which differ in frequency and momentum. Due to momentum conservation, this process is inherently …
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Optical micro-resonators in chalcogenide glass
… their potential uses. Microspheres, and micro-resonators in general, have attracted considerable attention because of their promise in all-optical-switching, micro-lasers, multiplexers and many other applications. In this thesis, several applications have been investigated, culminating in the …
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Sub-Optical Resonators With Grating Mirrors
Made available in DSpace on 2014-12-08T22:24:37Z (GMT). No. of bitstreams: 1 7000882.pdf: 1595756 bytes, checksum: 9fb41fa5e6a846aa646228bf8fcf012d (MD5) Previous issue date: 1969
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The physics of superconducting ring resonators
Superconducting microwave resonators with very high quality factor have been widely used in a large number of low-temperature experiments and applications over the past two decades. Numerous research on linear distributed, either half-wavelength or quarter-wavelength, and lumped element …
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Frequency synthesis using MEMS piezoelectric resonators
(cont.) Ultimately, this thesis presents two approaches to frequency synthesizer design. The first uses frequency windows of approximately 200 MHz. The 800 MHz to 1 GHz matching network is presented in detail along with predicted performance capabilities across this frequency range. The second …
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Solid State MEMS Resonators in Silicon
… technology. Development of solid state RF MEMS resonators in silicon, resonators that do not require any release etch step, eliminates the necessity for complex encapsulation methods and costly packaging. Such solid state solution could also enable direct integration into front-end-of-line …
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Atom-field interaction in optical resonators
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1997.
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Investigation of resonators loaded periodic structures
… materials, many structures such as split rings resonators (SRR) have been proposed in the literature to artificially fabricate radio frequency and microwave components. Due to their bulk properties, periodic arrays of SRRs provide a negative permeability. Therefore under the fundamental limit of …
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Scattering and absorption by acoustic resonators
Thesis (Ph.D.) Massachusetts Institute of Technology. Dept. of Physics, 1950.
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Forced oscillations of electromagnetic cavity resonators
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1941.
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Suspended microchannel resonators for biomolecular detection
Microfabricated transducers enable the label-free detection of biological molecules in nanoliter sized samples. Integrating microfluidic detection and sample-preparation can greatly leverage experimental efforts in systems biology and pharmaceutical research by increasing analysis throughput while …
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Characterization of materials using stripline resonators
… thesis describes a method for using stripline resonators to characterize the electrical properties of materials used in the construction of planar geometry transmission lines and circuits. The method characterizes both dielectric and conductor materials. It can be used to find the relative …
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