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Filtering by: Alternative title ssim EC 815 Remove constraint Alternative title ssim: EC 815 Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.)

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  • Grating-tuned external cavity diode lasers

    Creator:
    Falconer, Beate Stephan
    Abstract:
    Diode lasers have many advantages such as small size, high efficiency and small angular dispersion of the collimated beam. However they also have some problems like lack of frequency stability. They can not be tuned in wavelength. An external cavity can solve these problems and decrease the laser linewidth. To...
    Resource Type:
    Masters Thesis
    Full Text:
    Table 4.4.1.1.: Bandwidths of LD 12, EC 12, LD 12c and EC 12c. 52 Table 4.4.1.2.: Tuning ranges of LD

  • A study of deep levels of AlGaAs/GaAs heterojunction bipolar transistors

    Creator:
    Huang, Chun-ta
    Abstract:
    A study of deep levels of the emitter region of a heterojunction bipolar transistor is investigated using deep level transient spectroscopy (DLTS), deep level admittance spectroscopy (DLAS), thermally stimulated capacitance (TSCAP), and capacitance-voltage (C-V) profiling. The DX center, with an activation energy of 0.45 eV, is the only deep level...
    Resource Type:
    Masters Thesis
    Full Text:
    event. This investigation is limited to the trapping event. 3 (a) (b) (c) (d) Ec Et 0 Ev

  • Investigation of ultra-thin In-Ga-Zn-O thin-film transistors

    Creator:
    Chiang, Tsung-Han
    Abstract:
    The objective of the work reported herein is to explore the impact of decreasing channel thickness on radio-frequency (RF) sputtered amorphous indium-gallium-zinc oxide (a-IGZO) thin-film transistors (TFTs) electrical performance through the evaluation of drain current versus gate voltage (I[subscript D] − V[subscript G]) transfer curves. For a fixed set of...
    Resource Type:
    Masters Thesis
    Full Text:
    the physisorbed O2 and free electron capture from the conduction band, Ec, results in a chemisorbed

  • A comparison and assessment of hybrid filter topologies and control algorithms

    Creator:
    Chen, Lijun
    Abstract:
    The harmonic problem in power systems is gaining more attention as incidences correlated with harmonics increase. Conventional passive filtering techniques for harmonic mitigation have inherent problems, and purely active filters have the disadvantages of higher costs and ratings. Hybrid active filters inherit the efficiency of passive filters and the improved...
    Resource Type:
    Masters Thesis
    Full Text:
    shown in Figure 2.1. With ea,eb,ec c distortion, the extracted harmonic signal no longer contains a 5th