Search for dissertations about: "Mikael Käll"

Found 4 swedish dissertations containing the words Mikael Käll.

  2. 1. Raman scattering investigations of phonons in ceramic high-T superconductors

    Author : Mikael Käll; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; charge distribution; Raman spectroscopy; high-Tc superconductors; ceramics; phonons; atomic substitution;

    Abstract : .... READ MORE

  4. 2. Raman Scattering Studies of High-Tc Superconductors

    Author : Mikael Käll; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; superconducting gap; phonons; Raman scattering; high-Tc superconductivity;

    Abstract : This thesis describes Raman scattering investigations of cuprate high-Tc superconductors. The objective is to gain further knowledge on the physical properties that are relevant for the appearance of high-Tc superconductivity. READ MORE

  5. 3. Exciton-plasmon interactions in metal-semiconductor nanostructures

    Author : Staffan Hellström; Ying Fu; Mikael Käll; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; plasmons; excitons; quantum dots; nanoparticles; FDTD; surface plasmon polaritons; QDIP; quantum dot infrared photodetector; polaritons;

    Abstract : Semiconductor quantum dots and metal nanoparticles feature very strong light-matter interactions, which has led to their use in many photonic applications such as photodetectors, biosensors, components for telecommunications etc.Under illumination both structures exhibit collective electron-photon resonances, described in the frameworks of quasiparticles as exciton-polaritons for semiconductors and surface plasmon-polaritons for metals. READ MORE

  6. 4. Germanium layer transfer and device fabrication for monolithic 3D integration

    Author : Ahmad Abedin; Mikael Östling; Cor Claeys; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Monolithic; sequential; 3D; silicon; germanium; wafer bonding; etch back; germanium on insulator; GOI; Ge pFET; low temperature; Sipassivation; pn junction; Kisel; germanium; epitaxi; selektiv; pn-övergång; germanium påisolator; GOI; Ge PFET; bonding; monolitisk; sekventiell; tre dimensionell; 3D; lågtemperarad;

    Abstract : Monolithic three-dimensional (M3D) integration, it has been proposed,can overcome the limitations of further circuits’ performance improvementand functionality expansion. The emergence of the internet of things (IoT) isdriving the semiconductor industry toward the fabrication of higher-performancecircuits with diverse functionality. READ MORE