Search Constraints

Start Over
Filtering by: Creator Spies, Thomas A. Remove constraint Creator: Spies, Thomas A. Advisor Plant, Thomas K. Remove constraint Advisor: Plant, Thomas K. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

Search Results

  • Electro-optic characterization of SrS-based alternating current thin-film electroluminescent devices

    Creator:
    Nevers, Corey A.
    Abstract:
    Two methods of electro-optically characterizing alternating-current thin-film electroluminescent (ACTFEL) devices are investigated: photo-induced transferred charge (PIQ) and luminescence (PIL), and subthreshold voltage-induced transferred charge (VIQ) techniques. Both techniques provide information related to traps within the phosphor layer. PIQ/PIL experiments monitor the transport of electrons and holes across the phosphor layer...
    Resource Type:
    Masters Thesis
    Full Text:
    current thin-film electroluminescent devices AN ABSTRACT OF THE THESIS OF Corey A. Nevers for the

  • Alternating-current thin-film electroluminescent device optical excitation experiments

    Creator:
    Cleary, Bradford A.
    Abstract:
    This thesis investigates two methods of optical excitation of alternating-current thin-film electroluminescent (ACTFEL) devices. The two experimental methods investigated in this thesis are the photo-induced charge (PIQ) and luminescence (PIL), and the subthreshold-voltage induced transferred charge (VIQ) techniques. PIQ/PIL experiments utilize an above-bandgap laser pulse to investigate the transport properties...
    Resource Type:
    Masters Thesis
    Full Text:
    optical excitation experiments AN ABSTRACT OF THE THESIS OF Bradford A. Cleary for the degree of Master

  • Characteristics of semi-insulating GaAs photoconductive detectors under steady state illumination

    Creator:
    Yang, Howard C.
    Abstract:
    The optical and electrical characteristics of semi-insulating GaAs photoconductive detectors made with ohmic and Schottky contacts are studied in this thesis. Current - voltage measurements are made both in the dark and under varying power levels of HeNe laser (6328 Å) illumination. DC photocurrent gain is then calculated as a...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: Redacted for Privacy Thomas K. Plant The optical and electrical characteristics of semi

  • Deep ultraviolet solid-state laser development

    Creator:
    Dutton, David A. (David Adam)
    Abstract:
    There is a new possibility of generating deep ultraviolet laser radiation from a solid-state source. With recent advances in material development, a new nonlinear optical crystal provides a greater damage threshold than current materials making higher conversion efficiencies possible. This thesis examines the possibility of using this crystal to generate...
    Resource Type:
    Masters Thesis
    Full Text:
    THESIS OF David A. Dutton for the degree of Master of Science in Electrical and Computer

  • A dual-frequency diode laser displacement sensor

    Creator:
    Hwang, Nam
    Resource Type:
    Masters Thesis
    Full Text:
    A dual-frequency diode laser displacement sensor AN

  • A study of the photoresponse of semi-insulating gallium arsenide

    Creator:
    Schumm, Gerhard
    Abstract:
    The photoresponse behavior of semi-insulating GaAs is investigated. The photocarrier lifetime is discussed and the influence of surface and contact recombination is taken into account. Photocurrent-voltage characteristics have been measured and a mechanism for the gain in terms of space charge amplification and avalanching is suggested. The influence of deep...
    Resource Type:
    Masters Thesis
    Full Text:
    A Study of the Photorespone of Semi-Insulating Gallium Arsenide

  • Fiber Bragg grating-tunable diode laser

    Creator:
    Ericksen, Doug
    Abstract:
    Continuously tunable diode laser sources coupled to single-mode fiber are useful sources for fiber Bragg grating (FBG) strain sensors. This paper describes the development and fabrication of such a device. An introduction is given describing applications of tunable lasers and some of the different methods of creating a tunable diode...
    Resource Type:
    Masters Thesis
    Full Text:
    : _______________________________________ Thomas K. Plant Continuously tunable diode laser sources coupled to single-mode fiber

  • Wide stripe, high power diode lasers

    Creator:
    Parson, Kevin J.
    Abstract:
    Typical power outputs of commercially available diode lasers are on the order of 5 milliwatts. This thesis discusses the growth, processing and fabrication of high power (lOO's of milliwatts) diode lasers. Devices were grown by Molecular Beam Epitaxy (MBE) and by Metal Organic Chemical Vapor Deposition (MOCVD). The MOCVD diode...
    Resource Type:
    Masters Thesis
    Full Text:
    line analogies that, depending on the thickness of the high reflective coating, the result would be a

  • Low cost, short wavelenght fiber Bragg grating strain sensor systems

    Creator:
    Vaughan, Lira
    Abstract:
    Fiber Bragg grating sensors have been constantly researched for the last ten years and have finally begun to find use in the commercial market. However, one of the major factors limiting their widespread use is their system cost. Their lightweight, flexibility, electromagnetic immunity, and small size make fiber Bragg grating...
    Resource Type:
    Masters Thesis
    Full Text:
    , Short Wavelength Fiber Bragg Grating Strain Sensor Systems. Abstract Approved: Thomas K. Plant Fiber

  • Electrical properties of GaAs FET structures

    Creator:
    Yang, Fanling Hsu
    Abstract:
    The electrical properties of ion-implanted GaAs FET channels are investigated by two methods. First, the channel current (I) as a function of voltage (V) is examined at different temperatures and using different voltage ramp rates. The standard FET I-V curve, which can be observed on a commercial curve tracer, is...
    Resource Type:
    Dissertation
    Full Text:
    are investigated by two methods. First, the channel current (I) as a function of voltage (V) is