Browse Senior Theses - Electrical and Computer Engineering by Contributor "Goddard, Lynford"

  • Raval, Manan (2014-05)
    We present the theoretical simulation and experimental results of a slot waveguide structure and a strip-to-slot waveguide coupler implemented in the GaAs/AlGaAs system. Although there have been many demonstrations of slot ...

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  • Carter, Jared (2011-05)
    Palladium films show a complex refractive index change when exposed to hydrogen. This refractive index change is reversible and can be used as a mechanism for sensing trace amounts of hydrogen gas. Here we propose a ...

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  • Yan, Yu (2014-05)
    Thin-film Fabry-Perot hydrogen sensors with various thicknesses of Palladium are simulated, optimized, fabricated and tested. A reflection-transmission setup is built along with the necessary gas flow system. Detectors and ...

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  • Yan, Yu (2014-05)
    Thin-film Fabry-Perot hydrogen sensors with various thicknesses of Palladium are simulated, optimized, fabricated and tested. A reflection-transmission setup is built along with the necessary gas flow system. Detectors and ...

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  • Bazzoli, Michael (2017-05)
    The goal of this research is to improve a low-cost electroluminescence (EL) and photoluminescence (PL) imaging technique for defect and degradation detection in photovoltaic (PV) modules or cells. Our goal is to show ...

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  • Wang, Kaiyuan (2013-05)
    We demonstrate a maskless photochemical etching method which is capable of performing one-step etching of multi-level and grayscale structures on semiconductor substrates. This method utilizes a digital projector to focus ...

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  • Chang, Chia-Lun (2010-05)
    Hydrogen is seen as a promising alternative energy source, but its potential to ignite at a concentration as low as 4% in air is a concern. The motivation is to determine whether certain materials may be sensitive to ...

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  • Zhou, Jerry (2013-05)
    Our research aims to use diffraction phase microscopy (DPM) to measure palladium lattice expansion caused by the adsorption of hydrogen in real time. We need to be able to accurately model the Pd-H system because it is ...

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  • Kusolthossakul, Woraprach (2016-05)
    Metal-semiconductor junctions are important elements in semiconductor devices. An ohmic contact can be formed to provide better conductivity for the device. In order to improve traditional metal screen printing, which is ...

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  • Lu, Ching-Ying (2011-12)
    Integrating a distributed Bragg reflector (DBR) inside a microring resonator (MRR) provides several advantages over linear DBRs such as compact size, suppressed side mode ripples, and narrower linewidth. However, sidewall ...

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  • King, Aaron J. (2010-05)
    Many sensors for hydrogen use palladium as a sensing material due to its selective reaction with the gas. As Pd reacts with H2, its electrical and optical properties change in the process. The temperature of the system ...

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  • Garg, Akash (2009-05)
    Temperature is a key factor in determining the output stability of lasers. The performance of lasers tends to deteriorate with increasing temperature: the laser threshold increases while the efficiency decreases. In the ...

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  • Cheu, Xin Loong (2011-05)
    Characteristics of semiconductor lasers such as threshold current, quantum efficiency and lasing wavelength are temperature dependent. A typical GaAlAs laser diode shifts 1/4 nm in lasing wavelength with every increase ...

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  • Shine, Gautam (2011-05)
    Graphene is a two-dimensional carbon crystal arranged in a honeycomb lattice. Its excellent electronic properties and planar geometry make it a viable candidate for nanoelectronic applications. In this study, large-area ...

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  • Guh, Michael (2009-05)
    Because optical waveguides naturally have loss, methods to measure loss have been developed. The idea behind this research is to analyze methods of measuring the loss of light that is traveling through a waveguide. The ...

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