Sökning: "scattering matrix technique"

Visar resultat 1 - 5 av 23 avhandlingar innehållade orden scattering matrix technique.

  1. 1. Rough Scatterers in Acoustics and Elastodynamics

    Författare :Per-Åke Jansson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; acoustic scattering; penny-shaped crack; rough surfaces; elastodynamic scattering; T matrix; null field approach;

    Sammanfattning : The purpose of this thesis is to investigate the influence of roughness on wave scattering from finite-sized surfaces, in particular elastic wave scattering from cracks. Acoustic scattering from a sphere is considered using the null field approach. LÄS MER

  3. 2. Analytical methods of solution to eddy current interaction problems

    Författare :Lars Larsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Boundary integral equation; Scattering; T matrix; Eddy current; Nondestructive evaluation;

    Sammanfattning : The eddy current method is used for nondestructive evaluation of conducting materials. To achieve a greater knowledge and insure safe and reliable evaluation methods, the use of mathematical models is needed. LÄS MER

  4. 3. On integral equation methods of solution to eddy current interaction problems

    Författare :Lars Larsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; T matrix; Boundary integral equation; Eddy current; Scattering; Nondestructive evaluation;

    Sammanfattning : The eddy current method is used for nondestructive evaluation of conducting materials. To achieve a greater knowledge and insure safe and reliable evaluation methods, the use of mathematical models and simulations are needed. LÄS MER

  5. 4. Theoretical studies of light propagation in photonic and plasmonic devices

    Författare :Aliaksandr Rahachou; Igor Zozoulenko; Yuri S. Kivshar; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microcavities; photonic crystals; plasmonics; nanoparticles; scattering matrix technique; Green s function technique; Photonics; Fotonik;

    Sammanfattning : Photonics nowadays is one of the most rapidly developing areas of modern physics. Photonic chips are considered to be promising candidates for a new generation of high-performance systems for informational technology, as the photonic devices provide much higher information capacity in comparison to conventional electronics. LÄS MER

  7. 5. Light scattering and absorption in tissue - models and measurements

    Författare :Annika M K Enejder; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Tissue optical properties; Light absorption; Fluorescence spectroscopy; Atomic and molecular physics; NIR spectroscopy; Fysicumarkivet A:1997:Enejder; Light scattering; Atom- och molekylärfysik;

    Sammanfattning : In this work a number of theoretical models, describing light propagation in matter, have been applied to and developed for the examination of tissue. The aim was to model the light scattering and absorption in tissue in order to improve the understanding of underlying mechanisms of laser-based diagnostics and treatment modalities utilised for cancer and cardiovascular diseases. LÄS MER