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Dissertations / Theses on the topic 'Resonators'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Thorvaldsson, Thor. "Design and analysis of surface acoustic wave resonators and resonator filters /." [S.l.] : [s.n.], 1988. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=8471.

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2

Pourkamali, Siavash. "High frequency capacitive single crystal silicon resonators and coupled resonator systems." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/26563.

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Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2007.<br>Committee Chair: Ayazi, Farrokh; Committee Member: Allen, Mark; Committee Member: Brand, Oliver; Committee Member: Degertekin, Levent; Committee Member: Papapolymerou, John. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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3

Nelson, John. "Novel optical resonators." Thesis, University of Glasgow, 2012. http://theses.gla.ac.uk/3130/.

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Optical resonators – two mirrors facing each other, separated by a distance – are a very well studied technology. However, even such a well understood technology can sometimes present surprises. The first part of this thesis investigates the surprising properties of some canonical optical resonators. The basic properties of resonators are introduced. The imaging properties of stable and unstable resonators are examined. The second part of this thesis examines the potential use of grating- coupled cavities in gravitational wave detectors and describes an exper- iment carried out on a 10 m proto

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4

Hendricks, Jason Mark. "Holographic laser resonators." Thesis, University of Southampton, 2002. https://eprints.soton.ac.uk/15485/.

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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 the process of degenerate four-wave mixing inside a gain medium. In this scheme two mutually coherent beams overlap within a population inverted region of a laser amplifier and the subsequent interference pattern between them spatially hole burns a grating into the gain. The diffraction efficiency of

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5

Chen, Wei-Yen. "Benzocyclobutene microring resonators." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7695.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Dept. Electrical and Computer Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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6

Calton, Matthew Franklin. "Modeling of Acoustic Resonators and Resonator Systems for Use in Passive Noise Control." BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/9261.

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Acoustic resonators, such as the Helmholtz and quarter-wave resonator, can be used to attenuate unwanted noise in an enclosed space. Classical formulations can be used to approximate resonator performance for a given resonator configuration, but may lack sufficient accuracy for some applications. This research aims to improve the analytical characterization of resonators to provide better correlation to experimental results. Using higher-order approximations and proper end corrections, more accuracy can be obtained in calculating the impedance and resonance frequency of a single resonator,

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7

Ho, Gavin Kar-Fai. "Design and characterization of silicon micromechanical resonators." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/29634.

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Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009.<br>Committee Member: David R. Hertling; Committee Member: Farrokh Ayazi; Committee Member: Gary S. May; Committee Member: Oliver Brand; Committee Member: Paul A. Kohl. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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8

Wei, Lei. "Fiber resonators and lasers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ53524.pdf.

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9

Othman, M. B. "Silicon-based micromechanical resonators." Thesis, University of Southampton, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374856.

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10

Popa, Laura C. "Gallium nitride MEMS resonators." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99296.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 187-206).<br>As a wide band-gap semiconductor, with large breakdown fields and saturation velocities, Gallium Nitride (GaN) has been increasingly used in high-power, high-frequency electronics and monolithic microwave integrated circuits (MMICs). At the same time, GaN also has excellent electromechanical properties, such as high acoustic velocities and low elastic losses. Together with a strong piezoelectric coupling, these q

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11

Cherenack, K. H. (Kunigunde Hadelinde). "Modelling of layered cylindrical dielectric resonators with reference to whispering gallery mode resonators." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52942.

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Thesis (MScEng)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: Keywords: Dielectric Resonators, Radial Mode Matching, Whispering Gallery Modes The aim of this investigation was to develop accurate modelling techniques to determine the resonant frequencies of dielectric resonators. These resonators could be simple dielectric posts, rings or combinations of these two. To do this, a radial mode matching technique was implemented and applied to a post resonator, a ring resonator and finally a combination of the two. The resulting method was used to develop a model of a high-Q whispe

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12

Samarao, Ashwin Kumar. "Compensation and trimming for silicon micromechanical resonators and resonator arrays for timing and spectral processing." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/39543.

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This dissertation reports very novel solutions for the trimming and compensation of various parameters of silicon micromechanical resonators and resonator-arrays. Post-fabrication trimming of resonance frequency to a target value is facilitated by diffusing in a deposited thin metal layer into a Joule-heated silicon resonator. Up to ~400 kHz of trimming-up and trimming-down in a 100 MHz Silicon Bulk Acoustic Resonators (SiBARs) are demonstrated via gold and aluminum diffusion respectively. The dependence of the trimming range on the duration of Joule heating and value of current passed are pre

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13

Laschitsch, Alexander Thomas. "Dynamical measurements with quartz resonators." [S.l.] : [s.n.], 2000. http://ArchiMeD.uni-mainz.de/pub/2000/0021/diss.pdf.

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14

Ciressan, Nicoleta-Diana. "Nanogap MEM resonators on SOI /." [S.l.] : [s.n.], 2009. http://library.epfl.ch/theses/?nr=4484.

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15

El-Sabbagh, Adel. "Gas-filled axisymmetric acoustic resonators." College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/3177.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2005.<br>Thesis research directed by: Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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16

Humad, Shweta. "Piezo-on-Silicon Microelectromechanical Resonators." Thesis, Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5069.

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This thesis reports on the use of sputter-deposited zinc-oxide as a transduction mechanism to actuate and sense single crystal silicon (SCS) microelectromechanical (MEMS) resonators. Low frequency prototypes of piezo-on-silicon resonators with operating frequencies in the range of hundreds of kHz were implemented using micromechanical single crystal silicon clamped-clamped beam resonators. The resonators reported here extend the frequency of this technology into very high frequency (VHF range) by using in-plane length extensional bulk resonant modes. This thesis outlines the design, implement

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17

Sivapurapu, Abhishek. "Piezoelectrically-Transduced Silicon Micromechanical Resonators." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7478.

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This thesis reports on the design and fabrication of micro-electro-mechanical (MEM) resonators on silicon that are piezoelectrically-transduced for operation in the very high frequency (VHF) range. These devices have a block-type or beam-type design, and are designed to resonate in their in-plane and out-of-plane bulk extensional modes. Two piezoelectric materials were taken into consideration, zinc-oxide (ZnO) and lead-zirconate-titanate (PZT). The resonators are fabricated on silicon-on-insulator (SOI) wafers and the metal/piezo/metal stack of layers forming the device is built and patterned

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18

Heckl, Maria Anna. "Heat sources in acoustic resonators." Thesis, University of Cambridge, 1985. https://www.repository.cam.ac.uk/handle/1810/250863.

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19

Lee, Jimmy. "Vibration studies on TRIUMF resonators." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26305.

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The Cyclotron Division of Triumf, Canada's national meson facility, initiated a study to design replacement RF resonators which when in place would improve the quality of the particle beam produced by the cyclotron. A hot-arm, a major structure of a resonator, experiences thermal-related structural deformation and flow-induced structural vibration which reduces the spatial stability of the particle beam. The scope of this report encompasses studies on the hot-arm vibration to determine the desirable characteristics for a replacement hot-arm design which would reduce hot-arm vibration. The impr

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20

Dietrich, Christof Peter. "Cavity effects in polygonal resonators." Doctoral thesis, Universitätsbibliothek Leipzig, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-104393.

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In der vorliegenden Arbeit werden ZnO-Mikronadeln bezüglich ihrer Anwendbarkeit als Mikroresonatoren untersucht. Dabei stehen Kavitätsmoden im Fokus der Untersuchungen, die sich nur senkrecht zur Nadelachse ausbreiten, sprich innerhalb der hexagonalen Nadelquerschnittsfläche. Folglich wird der Einfluss der Gestalt der Querschnittsfläche auf Resonatoreigenschaften wie Propagation, Form, Direktionalität und Qualität der Kavitätsmoden sowohl theoretisch simuliert als auch experimentell nachgewiesen. Die dabei beobachteten hohen Qualitätsfaktoren von Flüstergalerie-Moden ermöglichen es darüberhina

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21

Dusatko, Tomas A. "Silicon carbide RF-MEM resonators." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100250.

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A low-temperature (<300°C) method to fabricate electrostatically actuated microelectromechanical (MEM) clamped-clamped beam resonators has been developed. It utilizes an amorphous silicon carbide (SiC) structural layer and a thin polyimide spacer. The resonator beam is constructed by DC sputtering a tri-layer composite of low-stress SiC and aluminum over the thin polyimide sacrificial layer, and is then released using a microwave O 2 plasma etch. Deposition parameters have been optimized to yield low-stress films (<50MPa), in order to minimize the chance of stress-induced buckling or fracture

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22

Veerasubramanian, Venkatakrishnan. "Applications of sidewalled grating resonators." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=114418.

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Recent developments in cutting edge fabrication techniques have led to research focused oncombining multiple optical and electronic functionalities, and to the integration of variousactive and passive components onto a single die. Integrated optical devices using waveguidesare being developed to replace traditional free space propagating devices utilizinglenses and mirrors. Silicon based photonic integrated circuits (PIC) are being investigatedfor intra-board and board-to-board optical interconnection in high speed computing, andas transceivers in high speed optical communications. One of the

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23

Albaho, Tareq Ibrahim Jasim. "Theory of empty optical resonators." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429594.

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24

Shackleton, Christian John. "Resonators for slab-waveguide lasers." Thesis, Heriot-Watt University, 1993. http://hdl.handle.net/10399/1387.

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25

Melnick, Joshua Robert. "Aluminum Nitride Countour Mode Resonators." Thesis, Rochester Institute of Technology, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1591270.

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<p> Resonators are a major component in RF electronic products. They are used in a host of ways to filter radio signals. Modern and Future RF communications have placed high demands on the industry; requiring low power usage, wide array of applications and resistance to noise. </p><p> In this thesis, a discussion of the motivation for RF MEMS filters and basic theory is given with an explanation of the concepts of Q factor, piezoelectricity, acoustics theory, the major types of resonators (SAW, BAW, CMR or LAMB), apodization theory and techniques as well as design, simulation of CMR and BAW

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26

Patel, Trupti. "Nanomechanical resonators for SQUID readout." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10043534/.

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Nano-electromechanical systems (NEMS) are an important new class of device, with a growing range of applications, from tests of quantum mechanics through to nanoscale metrology and a vast number of different sensors. Cryogenic operation is also possible, and at low temperatures, nanoscale resonators exhibit quantum behaviour. NEMS resonators require readout of ultra-small, atomic scale displacements. To achieve this at low temperatures we have developed an ultrasensitive nanoSQUID readout of a coupled current-carrying NEMS resonator. The NanoSQUIDs are fabricated by gallium focussed ion beam m

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27

Hill, Martyn. "Ultrasonic resonators for particle manipulation." Thesis, University of Southampton, 2004. https://eprints.soton.ac.uk/46529/.

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Ultrasonic standing waves can be used to generate radiation forces which act on particles within a fluid. These forces may be useful for manipulation, separation, or fractionation of these particles. This thesis describes the use and modelling of a number of devices which use such acoustic radiation forces. Initially, the design and testing of a large (multiple wavelength) flow-through ultrasonic separation device is described. This device demonstrated for the first time that flow-through ultrasonic filtration could be made to work successfully on this scale without having to rely on acoustica

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28

Cognee, Kevin. "Hybridization of open photonic resonators." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0002.

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Le contrôle de l'interaction entre la lumière et la matière est d'une importance capitale dans de nombreuses technologies modernes, avec des applications allant de la détection, aux télécommunications et à l'information quantique. Les résonateurs nanophotoniques permettent d'améliorer cette interaction par le confinement et le stockage du champ lumineux.Cette thèse étudie l'hybridation des modes propres des nano et microrésonateurs, et en particulier les propriétés de résonateurs hybrides composés d'une cavité diélectrique et de nanoantennes plasmoniques. Les résonateurs photoniques présentent

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29

Vidal, Diego N. Guerra. "Noise in nonlinear nonoelectromechanical resonators." Thesis, Boston University, 2013. https://hdl.handle.net/2144/12770.

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Thesis (Ph.D.)--Boston University PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you.<br>Nano-Electro-Mechanical Systems (NEMS), due to their nanometer scale size, possess a number of desirable attributes: high sensitivity to applied forces, fast response times, high resonance frequencies and low

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30

Ergül, Adem. "Fabrication and Characterization of Superconductive Coplanar Waveguide Resonators : Fabrication and Characterization of Superconductive Coplanar Waveguide Resonators." Licentiate thesis, KTH, Applied Physics, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10419.

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<p>The objective of this thesis is to evaluate a generic process for fabrication and characterization of the Superconductive coplanar waveguide (CPW) resonators. Superconductive CPW resonators with various lengths and shapes are designed to investigate their electrical and magnetic properties as well as resonance properties and sensitivities. In the first part of thesis, two different models are introduced in order to estimate the nonlinear kinetic inductance of a superconducting CPW resonator. The first model is based on Bean critical-state model and the second one is based on current depende

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31

Rabady, Rabi Ibrahim. "Waveguide grating mirror for laser resonators." Connect to online resource - WSU on-site and authorized users, 2003.

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32

Bhaskaran, Harish. "Nanomechanical resonators towards single spin sensitivity." College Park, Md. : University of Maryland, 2006. http://hdl.handle.net/1903/3877.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2006.<br>Thesis research directed by: Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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33

Unterreithmeier, Quirin. "Gradient Field Transduction of Nanomechanical Resonators." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-122076.

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34

Ibrahim, Tarek A. "Nonlinear optical semiconductor micro-ring resonators." College Park, Md. : University of Maryland, 2003. http://hdl.handle.net/1903/269.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2003.<br>Thesis research directed by: Electrical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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35

Udaiyan, Darren. "Novel self-adaptive Nd:YAG laser resonators." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300857.

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36

Alkov, Steven L. "Multifrequency acoustic resonators with variable nonuniformity." Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/28380.

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37

Wasilewski, Bartosz. "Novel resonators for planar waveguide lasers." Thesis, Heriot-Watt University, 1999. http://hdl.handle.net/10399/1221.

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38

Wong, Seck Jiong. "Thermoelastic damping in MEMS ring resonators." Thesis, University of Nottingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431849.

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39

Burg, Thomas P. (Thomas Peter). "Suspended microchannel resonators for biomolecular detection." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/34471.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2005.<br>Includes bibliographical references (leaves 115-124).<br>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 dramatically reducing reagent cost. Microfabricated resonant mass sensors are among the most sensitive devices for chemical d

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40

Childs, James Joseph. "Atom-field interaction in optical resonators." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/38422.

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41

Diao, M'baye S. M. Massachusetts Institute of Technology. "Investigation of resonators loaded periodic structures." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35606.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006.<br>"February 2006."<br>Includes bibliographical references (leaves 71-74).<br>The study of metamaterials has brought about new changes in modern microwave communication systems. As predicted by Veselago some 37 years ago, substances which exhibit simultaneously, negative permittivity ([epsilon]) and negative permeability ([mu]) over a certain range of frequencies would display some unusual phenomena such as backward waves, reversed refraction, backward Cerenkov radiation, and negat

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42

Wang, Wentao Ph D. Massachusetts Institute of Technology. "Solid State MEMS Resonators in Silicon." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/100152.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 191-196).<br>Two of the greatest challenges in MEMS are those of packaging and integration with CMOS 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 (FEOL) processing in C

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43

Calhoun, Paul Jacob 1979. "Frequency synthesis using MEMS piezoelectric resonators." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28897.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2004.<br>Includes bibliographical references (p. 79).<br>(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 design implements matching networks with variable capacitors and a variable load impedance. CAD performance simulations validate the broadband switched arr

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44

Wimberley, Jack Timpson. "Behavior of Periodic Coupled Microstrip Resonators." Thesis, Boston College, 2011. http://hdl.handle.net/2345/1983.

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Thesis advisor: Krzysztof Kempa<br>The resonant modes of a sequence of periodically spaced microstrip resonators is studied. The system is analyzed as transmission line with periodic capacitive gaps, as a waveguide with apertures via normal mode expansion, and through a derivation of the static fields in the gap between two microstrip resonators via conformal mapping. FDTD simulations are also performed to numerically calculate the resonant modes of the sequence and also its absorption spectrum when it contains a lossy dielectric. It is found, as expected, that when the gap size is large, the

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45

Slawik, Alexander John. "Nonlinear Analysis of Silicon Microdisk Resonators." Thesis, Northwestern University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3741327.

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<p> This dissertation addresses the character, control, and application of self-sustained oscillations in two-photon absorption dominated optical cavities. The complex interactions of photons, electrons, and thermal effects are understood to drive these emergent oscillations, with the dynamics captured by a system of ordinary differential equations. First, I explore the dynamics of the model and characterize the emergent optical oscillations as relaxation oscillations of a fast-slow system under certain conditions. Within this framework, I establish the entrainment of the oscillations to perio

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46

Elliott, Gregor Robert. "Optical micro-resonators in chalcogenide glass." Thesis, University of Southampton, 2009. https://eprints.soton.ac.uk/70912/.

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This thesis focuses on the production of gallium lanthanum sulphide (GLS) microspheres and 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 demonstration of laser action in a neodymium doped GLS microsphere. The possibility of using microspheres as ball lenses has been investigated and shown to be possible. Laser action was observed in a neodymium doped

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47

Busse, Mark A. "Characterization of materials using stripline resonators." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/45954.

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<p>This 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 dielectric constant and to separate the conductor and dielectric losses. The separation of the loss terms is achieved by fitting measurements of stripline losses to a well known model. This model identifies the loss terms separately based on variation of the losses with stripline dimensions.</p

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Gao, Jiansong Zmuidzinas Jonas Zmuidzinas Jonas. "The physics of superconducting microwave resonators /." Diss., Pasadena, Calif. : California Institute of Technology, 2008. http://resolver.caltech.edu/CaltechETD:etd-06092008-235549.

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Chandorkar, Saurabh Arun. "Energy loss mechanisms in micromechanical resonators /." May be available electronically:, 2009. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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50

Cousins, Richard. "Fabrication and measurement of nanomechanical resonators." Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/39302/.

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Over the past years there has been great progression in the field of micro- and nanomechanics with devices with higher and higher Q factors being created. This has been made possible thanks to a combination of advances in fabrication techniques and an increase in understanding as to what causes dissipation in nanometre scale structures. This understanding of dissipation mechanisms is still incomplete however. While lots of work has been done investigating mechanisms such as thermoelastic dissipation and dissipation due to two level systems (TLS) within the standard tunnelling model (STM) a ful

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