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Integration of Nanomechanical Resonators in Microfluidic Systems for Specific Protein DetectionKo, Wooree Unknown Date
No description available.
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Fabrication of large area resonator arrays using nanoimprint lithographyJanzen, Alexander Ryan Unknown Date
No description available.
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Transverse modes in porro prism resonatorsJanuary 2008 (has links)
This dissertation consists of two main sections. The first is a review of laser resonators
using spherical mirrors, and incorporates a physical optics numerical model of a Fabry-Perot
laser resonator without gain. The output of this model, which includes spot sizes, loss, and
transverse mode formation, is compared to the parameters calculated using published analytical
results. This comparison serves as a verification of the numerical methods used, as well as a
frame of reference for the model of a Porro prism resonator which follows in the second section.
The second section proposes a new method for analysing Porro prism resonators. The
analysis incorporates both geometric as well as physical optics concepts, with the prisms
modelled as rotating elements with amplitude and phase distortions. This yields expressions for
the orientation of the loss at the apex of each prism, and as well as the number of petals in the
“petal-pattern” beam structure commonly observed from Porro prism lasers. These expressions
are included in a numerical model, which is first used to verify the development of the
characteristic petal-pattern. Next, the numerical model is used to investigate the development of
the beam structure, in both time and space, in crossed Porro resonators with a range of Fresnel
numbers and stability parameters. This leads to some new insight into the transverse modes of
these lasers. / Thesis (M.Sc.)-University of KwaZulu Natal, Westville, 2008.
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Electrostatic testing of simple MEMS structuresCheng, Kar Mun 12 July 2006 (has links)
In this thesis, an adapted form of dynamic Electrostatic Force Microscopy is presented as an alternative technique for non-contact dynamic characterization of beam resonators. The actuation of the test resonant beam was accomplished by applying a modulated signal to a probe cantilever that was positioned closely above the resonant beam. The frequency response of the coupled electrostatic interaction between the conductive beams was studied close to the resonance of the test beams. Modulation of the input signal allowed the test resonator to be actuated without requiring on-chip circuitry, and the probing frequency range kept independent of the resonant frequency of the probe cantilever. The resonant response of three test cantilever beams were experimentally characterized using two softer probe cantilevers. A model was constructed to describe the coupled electrostatic interaction and simulations were performed to compare predictions from the model to experimental data. The amplitude response shape, resonant frequency and quality factor from the model fit well with experimental results, showing that the resonant response of a resonator can be characterized using this technique. However, the
phase and voltage variation responses were not well characterized, indicating further work to develop the force expressions in the model is needed.
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Electrostatic testing of simple MEMS structuresCheng, Kar Mun 12 July 2006 (has links)
In this thesis, an adapted form of dynamic Electrostatic Force Microscopy is presented as an alternative technique for non-contact dynamic characterization of beam resonators. The actuation of the test resonant beam was accomplished by applying a modulated signal to a probe cantilever that was positioned closely above the resonant beam. The frequency response of the coupled electrostatic interaction between the conductive beams was studied close to the resonance of the test beams. Modulation of the input signal allowed the test resonator to be actuated without requiring on-chip circuitry, and the probing frequency range kept independent of the resonant frequency of the probe cantilever. The resonant response of three test cantilever beams were experimentally characterized using two softer probe cantilevers. A model was constructed to describe the coupled electrostatic interaction and simulations were performed to compare predictions from the model to experimental data. The amplitude response shape, resonant frequency and quality factor from the model fit well with experimental results, showing that the resonant response of a resonator can be characterized using this technique. However, the
phase and voltage variation responses were not well characterized, indicating further work to develop the force expressions in the model is needed.
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Effect of mechanical and electrical biasing fields on thickness mode langasite resonatorsZhang, Haifeng, January 1900 (has links)
Thesis (Ph.D.)--University of Nebraska-Lincoln, 2007. / Title from title screen (site viewed Feb. 22, 2008). PDF text: x, 136 p. : ill. (some col.) ; 18 Mb. UMI publication number: AAT 3275065. Includes bibliographical references. Also available in microfilm and microfiche formats.
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Integration of nanomechanical resonators in microfluidic systems for special protein detectionKo, Wooree. January 2009 (has links)
Thesis (M. Sc.)--University of Alberta, 2009. / Title from pdf file main screen (viewed on July 13, 2009). "A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Masters [sic] of Science in Micro-Electro-Mechanical-Systems (MEMS) and Nanosystems, Department of Electrical and Computer Engineernig [sic], University of Alberta." Includes bibliographical references.
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A laser cavity design for a relativistic electron-beam pumped rare gas laserPearce, Kelly D. January 1986 (has links)
Thesis (M.S.)--University of Michigan, 1986.
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A study of the beam waveguide resonatorMink, James W. January 1964 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1964. / Typescript. Vita. Abstracted in Dissertation abstracts, v. 25 (1965) no. 7, p. 4048. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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Dielectric resonator in the presence of a lossy conductor /Johnston, Scott B., January 1993 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1993. / Vita. Abstract. Includes bibliographical references (leaf 64). Also available via the Internet.
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