Search Constraints

Start Over
Filtering by: Subject Light--Scattering Remove constraint Subject: Light--Scattering Decade 2000-2009 Remove constraint Decade: 2000-2009

Search Results

  • Electromagnetic properties of anisotropic plasmonic metamaterials

    Creator:
    Elser, Justin Lee
    Abstract:
    In this dissertation we study the electromagnetic properties of plasmonic metamaterials. We develop an analytical description to solve the fundamental problem of free-space scattering in planar plasmonic systems by utilizing anisotropic metamaterials. We show with exact numerical simulations that these manufactured materials do completely eliminate the scattering, and even in...
    Resource Type:
    Dissertation
    Full Text:
    analytical description to solve the fundamental problem of free-space scattering in planar plasmonic systems

  • Subwavelength light confinement and quantum chaos in micro- and nano-structured metamaterials

    Creator:
    Govyadinov, Alexander A.
    Abstract:
    This dissertation concerns a broad range of unique phenomena related to the light propagation at nano- and micro-scales. To access the nano-domain, we introduce anisotropy-based waveguides with positive- and negative-index modes. These novel structures allow energy propagation in subwavelength regions and, in contrast to surface waves, have the mode structure...
    Resource Type:
    Dissertation
    Full Text:
    light scattering phenomena in asymmetric micro-cavity res- onators. We introduce a novel class of

  • Unusual quantum effects in scattering wave functions of two-dimensional cage potentials

    Creator:
    Rowe, Kirk, 1966-
    Abstract:
    We exhibit long-lived resonances in scattering from two-dimensional soft cage potentials comprised of three and four Gaussian peaks. Specific low-energy resonances with very narrow width are shown to correspond to classical multiple-reflection events. These states have much larger probability densities inside the cage than outside and mimic bound states in...
    Resource Type:
    Dissertation
    Full Text:
    Scattering Wave functions of Two-Dimensional Cage Potentials. Abstract approved: Philip J. Siemens We

  • Classical chaotic scatting from symmetric four hill potentials

    Creator:
    Bauman, Jordan Michael
    Abstract:
    Classical chaotic scattering experiments were performed on ten different four hill potentials, unique under x-axis reflection, given by: V(x,y) = x²y²e⁻⁽ˣ² ⁺ ʸ²⁾ σᵢ where σᵢ was ±1 depending upon quadrant. Our work was based on a paper (9) that only studied the case where σᵢ =1 in all quadrants....
    Resource Type:
    Masters Thesis
    Full Text:
    Scattering from Symmetric Four Hill Potentials Abstract approved: Rubin H. Landau Classical chaotic

  • Multi application small light water reactor containment analysis and design

    Creator:
    Haugh, Brandon Patrick
    Abstract:
    This thesis presents the assessment of the Multi Application Small Light Water Reactor (MASLWR) containment design during steady-state and transient conditions. The MASLWR project is a joint effort between Idaho National Environmental and Engineering Laboratory (INEEL), NEXANT Bechtel, and Oregon State University. The project is funded under a Nuclear Energy...
    Resource Type:
    Masters Thesis
    Full Text:
    Small Light Water Reactor Containment Analysis and Design Abstract Approva __ ( / Jose I. Reyes, Jr

  • Influence of light on the growth of advance regeneration in the understory of Douglas-fir dominated forests in western Oregon

    Creator:
    Deisenhofer, Florian
    Abstract:
    The growth potential of Douglas-fir, grand fir and western hemlock advance regeneration in the forest understory of Douglas-fir-dominated forests was investigated to detennine the feasibility of selection cutting systems in northwest Oregon. This study compared the growth of Douglas-fir, grand fir and western hemlock advance regeneration along a light gradient...
    Resource Type:
    Masters Thesis
    Full Text:
    Light on the Growth of Advance Regeneration in the Understory of Douglas-fir Dominated Forests in

  • System model of a natural circulation integral test facility

    Creator:
    Galvin, Mark Robert, 1967-
    Abstract:
    The Department of Nuclear Engineering and Radiation Health Physics (NE/RHP) at Oregon State University (OSU) has been developing an innovative modular reactor plant concept since being initiated with a Department of Energy (DoE) grant in 1999. This concept, the Multi-Application Small Light Water Reactor (MASLWR), is an integral pressurized water...
    Resource Type:
    Dissertation
    Full Text:
    -Application Small Light Water Reactor (MASLWR), is an inte- gral pressurized water reactor (PWR) plant that

  • 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:
    . The periodic grating shown in Figure 2.5 produces feedback by scattering light in the active region

  • Effects of release from suppression on hydraulic architecture, photosynthetic capacity and functional wood characteristics in Douglas-fir and western hemlock

    Creator:
    Renninger, Heidi
    Abstract:
    Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), a shade intolerant species, and western hemlock (Tsuga heterophylla (Raf.) Sarg.), a shade tolerant species, were compared to learn more about the temporal pattern of release from suppression in both species, whether hydraulic architecture or photosynthetic capacity constrain release and how wood functional properties change...
    Resource Type:
    Masters Thesis
    Full Text:
    suppressed trees and did not exhibit photoinhibition at the highest light levels. Hydraulic architecture

  • Exchange interaction studies in magnetic semiconductors by neutron scattering

    Creator:
    Wiren, Zachary Quincy
    Abstract:
    Theories predict that making a dilute magnetic semiconductor strongly p -type would allow it to remain ferromagnetic at room temperature. This is of intrest as a ferromagnetic semiconductor would allow for a great many applications in the field of spintronics. Neutron scattering experiments were undertaken to better understand the antiferromagnetic...
    Resource Type:
    Dissertation
    Full Text:
    Magnetic Semiconductors by Neutron Scattering Abstract approved: Tomasz M. Giebultowicz Theories predict