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Skip to Search Results- 1Beltaos, Angela M
- 1Chung, Deborah K
- 1Gardner, Kirsty A
- 1Lane, Stephen A
- 1Lockwood, Ross A
- 1Manchee, Kyle
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Fall 2020
This thesis explores the optical and microstructural properties of fluorescent and lasing polymer microspheres, as well as methods for their fabrication and size control. I investigate the fluorescent and lasing behaviour of polymer-coated glass microspheres by a combination of evanescent...
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Spring 2016
This thesis explores the dynamics and sensing performance of silicon quantum dot (SiQD) ensembles coupled to the whispering gallery modes (WGMs) of spherical and cylindrical microcavities. The first project investigated the possibility of observing Purcell effects in an ensemble of QDs coupled to...
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Spring 2013
This work develops a refractive-index sensor based on whispering gallery modes (WGMs) in glass microcapillaries. The capillary channel is coated with a layer of fluorescent silicon quantum dots (QDs), which provides a fluorescence source that also supports the WGMs. When different fluids are...
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Spring 2015
This thesis focuses on the photoluminescence (PL) of free-standing silicon quan- tum dots (QDs). Large changes in the emission spectrum were found to occur when the QDs were exposed to different environments while undergoing short-wavelength laser irradiation, a phenomenon that was the main focus...
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Spring 2018
Graphene has created much excitement in the scientific community since 2004, when Novoselov and Geim developed a method to exfoliate atomic layers from graphite, earning them the 2010 Nobel prize. The great interest in graphene stems from its outstanding material properties such as atomic...
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Fall 2011
A capillary-type fluorescent-core microcavity refractive index sensor based on whispering gallery mode (WGM) resonances is presented. The device consists of a glass microcapillary with a thin layer of fluorescent silicon quantum dots (QDs) coated on the channel surface. The high index of the QD...
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Spring 2019
This thesis covers microfluidic sensing using whispering gallery modes supportedin silica microcapillaries coated with a fluorescent film, hereby calledfluorescent core microcapillaries (FCMs). We give an introduction to this classof device, and describe how it can be built and used effectively...
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Fall 2021
This thesis explores theoretical and experimental considerations for the design of refractometric sensors based on optical microcavities for sensing of gases and liquids as well as integrating sphere laser absorption spectroscopy for the detection of greenhouse gases. I discuss highly sensitive...
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Fall 2012
In studies of nanoscale materials, electron tomography (ET) can be used to obtain three dimensional information on the morphology and spatial distribution of nanoparticles. Electron tomography records a tilt series of projected images of an object and then mathematically reconstructs a 3D map of...