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  • Detection of exciton polaritons in organic thin film TES-ADT

    Creator:
    Haas, David P.
    Abstract:
    Exciton polaritons are quasiparticles composed of a quantum superposition of matter and light states that arises from the coupling of a standing wave photon and an exciton. This research has two primary objectives: to design and fabricate a Fabry-Perot microcavity system in which to produce exciton polaritons; and to show...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    e-beam deposition to coat a glass slide with silver, then spin cast a thin film of PMMA mixed with

  • Spectroscopic Ellipsometry on Thin Films of TiO2: Comparing Cauchy and Cody-Loretnz Models in CompleteEASE

    Creator:
    Kreb, Joseph
    Abstract:
    Spectroscopic ellipsometry (SE) is used to characterize amorphous and crystalline thin films of TiO2. Amorphous precursor films of TiO2 are deposited by radio frequency magnetron sputtering on fused silica and silicon substrates. Annealing the amorphous precursor films induces them to crystallize into either pure or mixed phases of the three...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    deposition parameters. A set of thin film samples has been made at varying sputtered deposition parameters

  • Optical Analysis of Titania : Band Gaps of Brookite, Rutile and Anatase

    Creator:
    Lance, Ryan A.
    Abstract:
    The optical transition in high-fraction polymorphs of titania (TiO2) were investigated to determine the band gap behavior of the most common polymorphs—brookite, rutile, and anatase—the values of which are varied in the literature. The direct optical band gaps of brookite, rutile, and anatase, were determined to be 3.37(7)eV, 3.41(11)eV and...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    of high-phase brookite, anatase and rutile in thin film form, and transmission and reflection spectra