Sökning: "Sverker Edvardsson"

Hittade 3 avhandlingar innehållade orden Sverker Edvardsson.

  1. 1. Molecular dynamics as a tool to calculating optical properties in rare-earth ion doped solids

    Författare :Sverker Edvardsson; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; optical properties; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  3. 2. On dynamic crack growth in discontinuous materials

    Författare :Johan Persson; Per Gradin; Per Isaksson; Sverker Edvardsson; Pär Jonsén; Mittuniversitetet; []
    Nyckelord :;

    Sammanfattning : In this thesis work numerical procedures are developed for modeling dynamic fracture of discontinuous materials, primarily materials composed of a load-bearing network. The models are based on the Newtonian equations of motion, and does not require neither stiffness matrices nor remeshing as cracks form and grow. LÄS MER

  4. 3. Transition Properties of f-electrons in Rare-earth Optical Materials

    Författare :Daniel Åberg; Börje Johansson; Sverker Edvardsson; Lidia Smentek; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; rare-earth ions; oscillator strengths; correlation; crystal field; f-electrons; Fysik; Physics; Fysik;

    Sammanfattning : The main purpose of this thesis is to theoretically study energy levels and intra-electronic transition intensities for various f-electron systems. The f-f electronic dipole transitions are parity-forbidden for a free ion but become non-zero when the ion is subject to a crystal-field. LÄS MER